CN111221032B

CN111221032B - Integrated radiation environment full-automatic monitoring station convenient to maintain

Info

Publication number: CN111221032B
Application number: CN202010208592.1A
Authority: CN
Inventors: 林炬; 潘葳; 张永锦; 邓学群; 严洁; 张会玲
Original assignee: Jiangsu Fuhuan Environmental Science And Technology Co ltd
Current assignee: Jiangsu Fuhuan Environmental Science And Technology Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2023-05-02
Anticipated expiration: 2040-03-23
Also published as: CN111221032A

Abstract

The invention discloses an integrated type full-automatic radiation environment monitoring station convenient to maintain, which comprises a cabin body, a full-automatic radioactive aerosol monitoring instrument positioned at one side of the cabin body and a plurality of detection elements positioned at one side far away from the full-automatic radioactive aerosol monitoring instrument, wherein a support for placing the detection elements is arranged in the cabin body, a side plate which is rotatably connected to the cabin body is arranged at one side of the cabin body, the rotation axis of the side plate is horizontally arranged, a first chute is horizontally and fixedly arranged on the bottom surface of the cabin body along the direction vertical to an access door, the bottom of the support is connected to the first chute in a sliding manner, and a limiting assembly for locking the support on the first chute is arranged on the bottom plate of the cabin body. The invention has the effect of being convenient for maintaining the detection element in the cabin body.

Description

Integrated radiation environment full-automatic monitoring station convenient to maintain

Technical Field

The invention relates to the field of radiant environment monitoring stations, in particular to an integrated radiant environment full-automatic monitoring station convenient to maintain.

Background

Radiation environmental monitoring refers to measurements relating to the operation of a facility operating radioactive materials, with the radiation and radioactivity levels outside the perimeter of the facility, the objects of radiation environmental monitoring being environmental media and living beings.

At present, chinese patent with publication number of CN104865591B discloses an integrated full-automatic monitoring station for radiation environment, which comprises a cabin body, a full-automatic sampling and measuring system for radioactive aerosol samples arranged in the cabin body, a UPS power host, a VPN encryptor, a data collector, a tablet personal computer, a generator, a storage battery and an intelligent power supply and distribution unit; the UPS power supply host, the VPN encryptor, the data acquisition device, the tablet personal computer, the generator, the storage battery and the intelligent power supply and distribution unit are overlapped up and down to be arranged or horizontally placed. When the detecting elements are used for a long time, the circuits in the detecting elements are aged, so that the resistor assemblies are enlarged, and the detecting elements are damaged to different degrees, so that the later maintenance is avoided.

The integrated radiation environment full-automatic monitoring station has the advantages that the space inside the cabin body is relatively narrow, the various detection elements are concentrated together, so that the movable range of maintenance personnel is relatively limited when maintenance is caused, and the maintenance is very inconvenient.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide the integrated type full-automatic radiation environment monitoring station convenient to maintain.

The technical aim of the invention is realized by the following technical scheme: the utility model provides an integrated type radiation environment full-automatic monitoring station convenient to maintenance, includes the cabin body, is located the full-automatic monitoring instrument of radioactivity aerosol of cabin body one side and keeps away from a plurality of detecting element of one side of the full-automatic monitoring instrument of radioactivity aerosol, set up the support that is used for placing detecting element in the cabin body, be located the curb plate of connection on the cabin body that is equipped with on one side of the support on the cabin body, the axis of rotation level of curb plate sets up, the fixed first spout that sets up of direction level along the perpendicular to access door on the bottom surface of the cabin body, the bottom of support slides and connects on first spout, be equipped with the spacing subassembly that is used for locking the support on first spout on the bottom plate of the cabin body.

Through above-mentioned technical scheme, when detecting element damages on the support, the space in the cabin is less, is unfavorable for the maintenance, rotates the horizontal position with the curb plate this moment, and the sliding support for the support and the part on the support break away from the cabin, thereby be convenient for maintain the part on the support, after the support shifts out the cabin simultaneously, can leave more maintenance space for the full-automatic monitoring instrument of radioactive aerosol sky, also be convenient for maintain the inside part of cabin. The limiting component is used for limiting the support in the cabin body and preventing the support from sliding in the cabin body.

The invention is further provided with: the limiting assembly comprises a first stop block and a second stop block which are positioned on two sides of the support, the first stop block is fixed on the first sliding groove and positioned on one side of the support away from the side plate, the second stop block is rotationally connected on the bottom plate of the cabin body, a clamping seat is fixedly arranged on the bottom plate of the cabin body, a rotating shaft is fixed in the clamping seat along the length direction of the first sliding groove, the second stop block is rotationally connected on the rotating shaft, and a torsion spring for jacking the second stop block is arranged between the second stop block and the bottom plate of the cabin body.

Through above-mentioned technical scheme, after support and first dog laminating, rotate the second dog for the support is spacing between first dog and second dog, thereby restriction support slides. The torsion spring is used for pushing the second stop block to ensure that the second stop block is in a vertical state.

The invention is further provided with: be equipped with the bolt that is used for pegging graft on the second dog between first dog and the second dog, the one end that keeps away from the second dog on the bolt passes first dog and an organic whole is equipped with the connecting rod of L shape, the one end that the bolt was kept away from to the connecting rod passes first dog, the one end that the bolt was kept away from to the connecting rod is docked with the support.

Through above-mentioned technical scheme, when the second dog rotated to the horizontality by vertical, the torsional spring is compressed and is contradicted at the second dog all the time this moment, must exert pressure to the second dog like this, just can remove the support. The bolt is used for being inserted on the second stop block, and the limit stop block automatically bounces back to the vertical state from the horizontal state. When the bracket pushes the connecting rod in the moving process, the bolt is gradually separated from the second stop block; when the support contacts with the first stop block, the bolt is completely separated from the first stop block, and the second stop block automatically bounces up, so that the support can be conveniently and rapidly fixed.

The invention is further provided with: the one end that keeps away from the bolt on the connecting rod is fixed to be equipped with the baffle, the cover is equipped with the spring on the connecting rod, the both ends of spring are contradicted respectively on the baffle and on the first dog.

Through the technical scheme, the spring is used for pushing the connecting rod, so that the connecting rod drives the bolt to be automatically inserted into the second stop block. When the bracket is separated from the first stop block, the bolt can be automatically inserted into the second stop block to replace manual driving.

The invention is further provided with: the first stop block is fixedly provided with a plurality of elastic pieces, and two ends of each elastic piece are respectively abutted against the first stop block and the side face of the support.

Through above-mentioned technical scheme, the setting of elastic component for the support can break away from with first dog automatically, and like this people only need touch down the second dog when the operation, and the support breaks away from with first dog automatically, and the bolt is pegged graft on the second dog automatically, is convenient for like this to the support unblock.

The invention is further provided with: the side plate is fixedly provided with a second chute, when the side plate rotates to a horizontal position, the first chute and the second chute are in butt joint, and the limit assemblies are two groups and are respectively positioned on the side plate and the bottom plate of the cabin.

Through above-mentioned technical scheme, when the support removes on the curb plate, spacing subassembly on the curb plate locks the support, avoids the support to rock when carrying out the dismouting to detecting element.

The invention is further provided with: the support comprises a plurality of layers of horizontally arranged mounting plates and four support columns positioned between adjacent mounting plates, wherein two parallel arranged cross beams are fixedly arranged at the top ends of the support columns, and dovetail grooves and dovetail blocks which are matched with each other are formed between the cross beams and the mounting plates along the width direction of the mounting plates.

Through above-mentioned technical scheme, detecting element prevents on the mounting panel, because the mounting panel on upper strata forms the restriction between to the mounting panel on lower floor for detecting element can only horizontal movement, makes detecting element's dismouting receive certain restriction like this. The mounting plate slides through dovetail groove and dovetail piece and connects on the crossbeam, so can dismantle between the different mounting plates, be convenient for follow each angle and carry out the dismouting to detecting element like this.

The invention is further provided with: the support column is including fixing the stay tube and the vertical bracing piece of sliding connection in the stay tube at the mounting panel upper surface, the bracing piece runs through the mounting panel, the last locating pin that is used for pegging graft on the bracing piece that slides along the direction of perpendicular to bracing piece of mounting panel.

Through above-mentioned technical scheme, when staggering each other between the adjacent mounting panel, the lower extreme of upper mounting panel is unsettled this moment, leads to the atress unbalance of support like this, further leads to the support to topple over. The bracing piece can conflict on the mounting panel of lower floor or subaerial, plays the effect of supporting to unsettled mounting panel like this, prevents that the support from empting. The limiting pin is used for limiting the movement of the supporting rod, and when the supporting rod plays a supporting role, the limiting pin is inserted on the supporting rod in a limiting way, so that the position of the supporting rod is locked.

The invention is further provided with: the mounting plate is internally provided with a guide groove with a T-shaped section, the limiting pin is connected in the guide groove in a sliding manner, the limiting pin is L-shaped, one end of the limiting pin exceeds the guide groove, and the guide groove is internally provided with a pressure spring for pushing the limiting pin onto the support rod.

Through the technical scheme, the pressure spring is used for pushing the limiting pin, so that the limiting pin is always inserted on the supporting rod, and the limiting pin is prevented from being separated from the supporting rod.

In summary, the invention has the following beneficial effects:

1. the bracket is moved out of the cabin body, so that the maintenance space is increased, and the convenience of noon break is improved;

2. the limiting component is used for locking the bracket in the cabin body and preventing the bracket from shaking randomly in the cabin body;

3. the mounting plates can slide, so that adjacent mounting plates can be staggered, and the mounting plates are further convenient for dismounting the detection element.

Drawings

Fig. 1 is a schematic overall structure of the present embodiment.

Fig. 2 is a schematic view of the internal structure of the cabin according to the present embodiment after the side wall is cut away.

Fig. 3 is a cross-sectional view A-A of fig. 2.

Fig. 4 is a schematic structural view of the bracket and the stopper assembly of the present embodiment.

Fig. 5 is a schematic structural diagram of the limiting assembly of the present embodiment.

Fig. 6 is a schematic view of the structure of the stent of the present embodiment after deployment.

Fig. 7 is a schematic view of the semi-sectional structure in the direction B-B in fig. 6.

Reference numerals: 10. a cabin body; 11. a full-automatic radioactive aerosol monitoring instrument; 12. a detection element; 13. a first chute; 2. a side plate; 21. a second chute; 3. a bracket; 31. a mounting plate; 32. a support column; 321. a support tube; 322. a support rod; 33. a limiting pin; 34. a first limiting hole; 35. a second limiting hole; 36. a pressure spring; 37. a cross beam; 38. a dovetail groove; 39. dovetail blocks; 4. a limit component; 41. a first stopper; 42. a second stopper; 421. a clamping seat; 422. a rotating shaft; 43. a plug pin; 44. a connecting rod; 45. a spring; 46. a baffle; 47. an elastic member; 5. and (3) a torsion spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples: referring to fig. 1 and 2, an integrated radiation environment full-automatic monitoring station convenient to maintain comprises a cabin body 10, a radioactive aerosol full-automatic monitoring instrument 11 arranged in the cabin body 10, and various detection elements 12, wherein the detection elements 12 specifically comprise a data collector, a PVN encryption machine, a tablet personal computer and the like. The cabin body 10 is internally provided with the support 3, the detection element 12 is arranged on the support 3, the support 3 and the full-automatic radioactive aerosol monitoring instrument 11 are arranged in parallel, and a certain space is reserved between the support 3 and the full-automatic radioactive aerosol monitoring instrument, so that people can conveniently enter the cabin body 10, and data detected by the detection instrument can be known.

Referring to fig. 1 and 2, since the internal space of the cabin 10 is relatively small, when the sensing element 12 is used for several years, the circuit is aged, resulting in damage to the sensing element 12, which requires maintenance, while the space in the cabin 10 is too small, resulting in small maintenance space, which is inconvenient to maintain. Therefore, the side plate 2 is rotatably arranged on one side of the cabin 10, which is positioned on the bracket 3, the rotation axis of the side plate 2 is horizontally arranged, the first sliding groove 13 and the second sliding groove 21 are respectively arranged on the bottom plate of the cabin 10 and the inner side surface of the side plate 2, and when the side plate 2 is vertically rotated to a horizontal position, the first sliding groove 13 and the second sliding groove 21 are mutually butted. When the detecting element 12 is damaged, the side plate 2 is rotated to push the bracket 3 so that the bracket 3 slides onto the side plate 2 along the first and second sliding

grooves

13 and 21, so that the bracket 3 is located outside the cabin 10, and thus the space for maintenance is greatly increased.

Referring to fig. 2 and 5, the cabin 10 is provided with a limiting assembly 4, and the limiting assembly 4 is used for limiting the bracket 3 on the first chute 13, so as to prevent the bracket 3 from shaking on the first chute 13. The limiting assembly 4 comprises a first stop 41 and a second stop 42 which are positioned on two sides of the bracket 3, wherein the first stop 41 is positioned on one side far away from the side plate 2, the first stop 41 is fixed on the bottom plate of the cabin 10, and the second stop 42 is rotatably connected on the bottom plate of the cabin 10. The clamping seat 421 is fixedly arranged on the bottom plate of the cabin 10, the rotating shaft 422 is fixedly arranged on the clamping seat 421 along the length direction of the first sliding groove 13, the second stop block 42 is rotationally connected to the rotating shaft 422, the torsion spring 5 is arranged between the second stop block 42 and the bottom plate of the cabin 10, and the torsion spring 5 is used for jacking up the second stop block 42. When the second stop block 42 rotates to the horizontal position, the second stop block 42 is staggered from the bracket 3 in the vertical direction so as not to contact with the bracket 3 and not to obstruct the movement of the bracket 3; when the second stopper 42 is rotated to the vertical state, the second stopper 42 contacts with the side surface of the bracket 3, thereby limiting the bracket 3 between the first stopper 41 and the second stopper 42, preventing the bracket 3 from shaking.

Referring to fig. 3 and 5, a latch 43 is disposed above the bottom plate of the cabin 10 along the length direction of the first chute 13, the latch 43 is used for being inserted on the second stop block 42, an insertion hole matched with the latch 43 is disposed on the second stop block 42, and when the second stop block 42 rotates to a horizontal position, the latch 43 is just inserted in the insertion hole. When the bracket 3 needs to be moved, the second stop block 42 is manually driven to rotate first, and meanwhile the plug pin 43 is inserted into the second stop block 42, so that the second stop block 42 is prevented from bouncing up under the action of the torsion spring 5.

Referring to fig. 2 and 5, an end of the latch 43 remote from the second stopper 42 passes through the first stopper 41 and is integrally provided with an L-shaped connection rod 44, and an end of the connection rod 44 remote from the latch 43 is horizontally provided and passes through the first stopper 41 again, and the connection rod 44 is abutted with the bracket 3 after passing through the first stopper 41. When the bracket 3 needs to be pushed into the cabin 10 from the outside of the cabin 10, the second stop block 42 is in a horizontal state at this time, so that the bracket 3 is not blocked from moving; when the side of support 3 is contradicted on connecting rod 44, continue to promote support 3, support 3 drives connecting rod 44 and bolt 43 to the direction removal of keeping away from second dog 42, and when support 3 contacted with first dog 41, bolt 43 just in time breaks away from with second dog 42 this moment, and second dog 42 rotates to vertical state under torsional spring 5 like this, and then support 3 is spacing.

Referring to fig. 4 and 5, a baffle 46 is fixedly disposed on one end of the connecting rod 44 near the bracket 3, and a spring 45 is sleeved on the connecting rod 44, and two ends of the spring 45 respectively abut against the baffle 46 and the first stop block 41. When the bracket 3 pushes the shutter 46 in a direction approaching the first stopper 41, the spring 45 is compressed at this time. When the bracket 3 needs to be moved out, people press down the second stop block 42 and then move the bracket 3, so that a gap is reserved between the bracket 3 and the first stop block 41, and at the moment, the spring 45 drives the bolt 43 to be automatically inserted into the second stop block 46, so that the condition that the bolt 43 is manually driven to be inserted into the second stop block 42 is avoided.

Referring to fig. 4 and 5, an elastic member 47 is fixedly provided on the first barrier 46, and one end of the elastic member 47 is abutted against a side surface of the bracket 3. When the bracket 3 contacts with the side surface of the first block 41, the elastic piece 47 is compressed, so that when the second block 42 is separated from the bracket 3, the elastic piece 47 automatically pushes the bracket 3 to be separated from the first block 41, and the bolt 43 can be quickly and automatically inserted on the second block 42. The elastic member 47 is specifically a spring 45.

Referring to fig. 1, the limiting assemblies 4 are respectively arranged on the side plate 2 and the bottom plate of the cabin 10, so that when the bracket 3 moves to the side plate 2, the bracket 3 is limited on the side plate 2 through the limiting assemblies 4, and the stability of the bracket 3 on the side plate 2 is improved.

Referring to fig. 6 and 7, the bracket 3 includes four layers of mounting plates 31 and support columns 32 for supporting adjacent mounting plates 31, the mounting plates 31 are rectangular, and the support columns 32 of the same layer are located at four corners of the mounting plates 31, respectively. By layering, various detection elements 12 are mounted on the bracket 3, increasing space utilization.

Referring to fig. 6 and 7, the top ends of the support columns 32 horizontally fix the cross beams 37 along the width direction of the mounting plate 31, the upper surfaces of the cross beams 37 fixedly provide dovetail blocks 39 along the width direction of the mounting plate 31, and the lower surfaces of the mounting plate 31 provide dovetail grooves 38 which are matched with the dovetail blocks 39. The above arrangement makes the mounting plates 31 staggered, and the upper side of the lower mounting plate 31 is limited by the upper mounting plate 31, so that the detection element 12 on the lower mounting plate 31 is inconvenient to take. The upper mounting plate 31 can slide along the width direction of the mounting plate 31, so that the upper side of the lower mounting plate 31 is free, and the detection element 12 is further convenient to detach and mount.

Referring to fig. 6 and 7, the support column 32 includes a support tube 321 fixed to the upper surface of the mounting plate 31 and a support rod 322 slidably coupled in the fixing sleeve. When the adjacent mounting plates 31 are staggered, the support rods 322 are slid, so that the support rods 322 are supported on the mounting plates 31 on the ground or on the lower layer, and the lower part of the mounting plate 31 is completely suspended after the upper layer of mounting plates 31 are prevented from being misplaced. The mounting plate 31 is horizontally slipped with a limiting pin 33, the limiting pin 33 is arranged along the direction perpendicular to the supporting rod 322, and the upper end of the supporting rod 322 is provided with a first limiting hole 34 matched with the limiting pin 33. The support post 32 extends through the mounting plate 31 and the cross beam 37 and is clearance fit in the support tube 321. After the mounting plate 31 slides, the support rod 322 slides again, and after the first limiting hole 34 is in butt joint with the limiting pin 33, the limiting pin 33 slides, so that the limiting pin 33 is inserted into the first limiting hole 34, and the support rod 322 cannot slide along the vertical direction, and further plays a role in locking the support rod 322.

Referring to fig. 6 and 7, a second limiting hole 35 is provided at the lower end of the support rod 322, and when the mounting plates 31 are arranged to overlap up and down, the support rod 322 is slid, so that the support rod 322 is simultaneously inserted into the upper and lower adjacent support tubes 321, and simultaneously the second limiting hole 35 is aligned with the limiting pin 33, and the limiting pin 33 is inserted into the second limiting hole 35, thus limiting the mounting plates 31 to slide on the cross beams 37, and locking the mounting plates 31.

Referring to fig. 6 and 7, a T-shaped chute is formed in the mounting plate 31, the limiting pin 33 is L-shaped, one end of the limiting pin 33 extends beyond the mounting plate 31, a compression spring 36 is disposed in the chute, and the compression spring 36 is located at one end of the limiting pin 33 away from the connecting rod 44. When the first limiting hole 34 or the second limiting hole 35 is aligned with the limiting pin 33, the limiting pin 33 can be automatically inserted into the supporting rod 322, and the pressure spring 36 also prevents the limiting pin 33 from being separated from the supporting rod 322.

The implementation principle of the embodiment is as follows: when maintenance is needed, the side plate 2 is opened, the second stop block 42 is manually touched to rotate to a horizontal position, and the bracket 3 is pushed to move out of the cabin 10; after the bracket 3 moves out of the cabin 10, the bracket is further locked by the limiting assembly 4, and after the bracket is locked, the adjacent mounting plates 31 can be staggered by sliding the mounting plates 31, so that a maintenance space can be greatly reserved.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims

1. The utility model provides an integrated form radiation environment full-automatic monitoring station convenient to maintenance, includes the cabin body (10), is located the full-automatic monitoring instrument (11) of radioactive aerosol of the internal one side of cabin body (10) and keeps away from a plurality of detecting element (12) of the full-automatic monitoring instrument (11) of radioactive aerosol's one side, its characterized in that: a support (3) for placing a detection element (12) is arranged in the cabin body (10), a side plate (2) which is rotatably connected to the cabin body (10) is arranged on one side of the support (3) on the cabin body (10), the rotation axis of the side plate (2) is horizontally arranged, a first chute (13) is horizontally and fixedly arranged on the bottom surface of the cabin body (10) along the direction perpendicular to the access door, the bottom of the support (3) is slidingly connected to the first chute (13), and a limit component (4) for locking the support (3) on the first chute (13) is arranged on the bottom plate of the cabin body (10);

the limiting assembly (4) comprises a first stop block (41) and a second stop block (42) which are positioned on two sides of the support (3), the first stop block (41) is fixed on the first sliding groove (13) and is positioned on one side, far away from the side plate (2), of the support (3), the second stop block (42) is rotationally connected onto a bottom plate of the cabin body (10), a clamping seat (421) is fixedly arranged on the bottom plate of the cabin body (10), a rotating shaft (422) is fixedly arranged in the clamping seat (421) along the length direction of the first sliding groove (13), the second stop block (42) is rotationally connected onto the rotating shaft (422), and a torsion spring (5) for jacking the second stop block (42) is arranged between the second stop block (42) and the bottom plate of the cabin body (10);

a bolt (43) for being inserted on the second stop block (42) is arranged between the first stop block (41) and the second stop block (42), one end, far away from the second stop block (42), of the bolt (43) penetrates through the first stop block (41) and is integrally provided with an L-shaped connecting rod (44), one end, far away from the bolt (43), of the connecting rod (44) penetrates through the first stop block (41), and one end, far away from the bolt (43), of the connecting rod (44) is in butt joint with the bracket (3);

the one end that keeps away from bolt (43) on connecting rod (44) is fixed and is equipped with baffle (46), the cover is equipped with spring (45) on connecting rod (44), the both ends of spring (45) are contradicted respectively on baffle (46) and on first dog (41).

2. The integrated radiant environment fully automatic monitoring station convenient to maintain as set forth in claim 1, wherein: a plurality of elastic pieces (47) are fixedly arranged on the first stop block (41), and two ends of each elastic piece (47) are respectively abutted against the first stop block (41) and the side face of the support (3).

3. The integrated radiant environment fully automatic monitoring station convenient to maintain as set forth in claim 1, wherein: the side plate (2) is provided with a second chute (21) which is in butt joint with the first chute (13), when the side plate (2) rotates to a horizontal position, the first chute (13) is in butt joint with the second chute (21), and the limit assemblies (4) are in two groups and are respectively positioned on the side plate (2) and the bottom plate of the cabin body (10).

4. The integrated radiant environment fully automatic monitoring station convenient to maintain as set forth in claim 1, wherein: the support (3) comprises a plurality of layers of horizontally arranged mounting plates (31) and four support columns (32) positioned between adjacent mounting plates (31), two parallel arranged cross beams (37) are fixedly arranged at the top ends of the support columns (32), and dovetail grooves (38) and dovetail blocks (39) which are matched with each other are formed between the cross beams (37) and the mounting plates (31) along the width direction of the mounting plates (31).

5. The integrated radiant environment fully automatic monitoring station convenient to maintain according to claim 4, wherein: the support column (32) is including fixing stay tube (321) and the vertical bracing piece (322) of sliding connection in stay tube (321) at mounting panel (31) upper surface, bracing piece (322) run through mounting panel (31), the last spacer pin (33) that are used for pegging graft on bracing piece (322) that slide along the direction of perpendicular to bracing piece (322) of mounting panel (31).

6. The integrated radiant environment fully automatic monitoring station convenient to maintain according to claim 5, wherein: be equipped with the guide way that the cross-section becomes T shape in mounting panel (31), locating pin (33) slide and connect in the guide way, locating pin (33) become L shape, the one end of locating pin (33) surpasss the guide way, be equipped with in the guide way and be used for pushing up pressure spring (36) of locating pin (33) on bracing piece (322).