CN219224217U - Sampling device - Google Patents

Abstract

The utility model belongs to the technical field of sampling devices, in particular to a sampling device which comprises a base, wherein the bottom of the base is rotationally connected with a pulley, one side of the root of the base is fixedly connected with a box body, the top of the box body is fixedly connected with a push handle, two sides of the top of the base are fixedly connected with fixing plates, the surface of one of the fixing plates is provided with a through hole, and one side of the base is fixedly connected with a balancing weight; through the setting of dismouting mechanism, bolt and screw hole, can take out the sample section of thick bamboo from placing a section of thick bamboo, and then need not take out the sample in the sample section of thick bamboo and wash the inside of sample section of thick bamboo again, avoided taking out the sample time because external factor makes the sample damage, saved a large amount of time to sample assembly dismouting is also very convenient, has improved the reliability of work efficiency and sample, through filtering shell and clearance board, can prevent that weeds from getting into the sample section of thick bamboo, and prevent impurity jam filtering shell.

Description

Sampling device

Technical Field

The utility model relates to the technical field of sampling devices, in particular to a sampling device.

Background

At present, when sewage treatment is carried out, the sewage is required to be sampled and analyzed firstly, then a sewage treatment process flow is formulated, and the standard condition of the effluent is analyzed and the running condition of each working link is analyzed, so that a sampling device is required.

The existing sampling device is characterized in that sewage is often transferred to other containers during sampling, and then the sampling tube is cleaned for use, so that the sample is damaged due to external factors in the transferring process, a large amount of time is wasted, weeds are mixed in the sampling process, and further, subsequent workers are required to process the sample, and the sample is very troublesome; therefore, a sampling device is proposed for the above-mentioned problems.

Disclosure of Invention

In order to make up the deficiency of the prior art, solve and often shift sewage to other containers in the sample, then wash the use to the sampling tube, can not merely damage the sample because of the external factor in the course of transferring like this, and wasted a large amount of time, can mix with weeds in the course of sampling, thus still need the subsequent staff to deal with, very troublesome problem, the utility model proposes a kind of sampling device.

The technical scheme adopted for solving the technical problems is as follows: the utility model discloses a sampling device, which comprises a base, the bottom of the base is rotationally connected with a pulley, one side of the root of the base is fixedly connected with a box body, the top of the box body is fixedly connected with a pushing handle, the two sides of the top of the base are fixedly connected with fixing plates, one of the fixing plates is provided with a through hole on the surface, one side of the base is fixedly connected with a balancing weight, the balancing weight is located on the bottom side of the box body, two fixing plates are fixedly connected with a sliding rail together, one side of the fixing plates is fixedly connected with a motor, one end of the motor is rotationally connected with a screw rod, one end of the screw rod penetrates through the fixing plates and the side wall of the sliding rail and is rotationally connected with the inner wall of the sliding rail, the surface of the screw rod is in threaded connection with a sliding block, the sliding block is slidably connected with the inside the sliding rail, the bottom of the sliding block is provided with a sampling mechanism through the pulley and pushing handle, when sewage is sampled, the motor drives the screw rod to rotate, the sliding block is driven to slide left and right in the inside the sliding rail through the starting motor, one end of the sliding mechanism is driven by the sliding block to move up and down through the sliding cylinder, and then the sampling mechanism is driven by the first hydraulic pressure rod to move up through the first sampling cylinder and then to the first sampling cylinder and then move up through the first sampling cylinder.

Preferably, the sampling mechanism comprises a hydraulic cylinder, a first hydraulic rod is fixedly connected to the bottom of the hydraulic cylinder, a second hydraulic rod is fixedly connected to two sides of the bottom of the hydraulic cylinder, a filtering mechanism is arranged at the bottom of the first hydraulic rod, a mounting plate is fixedly connected to the bottom of the second hydraulic rod, sampling components are arranged on two sides of the inside of the filtering mechanism, and a dismounting mechanism is jointly arranged between the top of the sampling components and the mounting plate.

Preferably, the filtering mechanism comprises a connecting plate, the connecting plate is fixedly connected to the bottom end of the first hydraulic rod, a threaded hole is formed in the top of the connecting plate, the two sides of the bottom of the connecting plate are fixedly connected with a placing barrel, and the bottom of the placing barrel is fixedly connected with a filtering shell.

Preferably, two common fixedly connected with connecting rod between the bottom of filtering the shell, the bottom both sides fixedly connected with machine case of connecting rod, the inside fixedly connected with power piece of machine case, the top of power piece rotates and is connected with the clearance pole, when taking a sample to sewage, can filter weeds etc. in river water through filtering mechanism, specifically filter weeds etc. in sewage through filtering the shell to can not mix weeds etc. when making the sample, can fix machine case and filtering between the shell through the connecting rod, then drive the clearance board through starting the power piece and clear up the surface of filtering the shell, prevent impurity jam filtering shell and influence the inside that sewage enters into the filtering shell and influence the filter effect of filtering the shell.

Preferably, the sampling assembly comprises a sampling tube, the sampling tube is placed in the interior of the placement tube, the top of the sampling tube is fixedly connected with a sealing plate, the bottom tube of the sampling tube is connected with a water inlet pipe, the inner wall of the sampling tube is fixedly connected with a limiting ring, and two sides of the top of the sealing plate are connected with bolts in a threaded manner.

Preferably, the inside sliding connection of the sampling tube has the piston, the top fixedly connected with push-and-pull rod of piston, the top of push-and-pull rod passes the inner wall of closing plate and fixedly connected with installation handle, drives the installation handle upward movement through starting second hydraulic stem to the push-and-pull rod of installation handle bottom drives the piston upward movement, and then sewage enters into the inside of sampling tube through the inlet tube.

Preferably, the dismounting mechanism comprises a sliding groove, the sliding groove is arranged on two sides of the inside of the mounting plate, a sliding rod is connected to the sliding groove in a sliding mode, one end of the sliding rod extends to the outside of the mounting plate and is fixedly connected with a sliding frame, and a first spring is elastically connected between the inside of the sliding groove and one end of the sliding rod.

Preferably, the inside sliding connection of sliding frame has the sliding block, one side fixedly connected with draw-in bar of sliding block, the top one side fixedly connected with fixture block of draw-in bar, common elastic connection has the second spring between the top of sliding block and the inner wall of sliding frame, the draw-in groove has been seted up to the both sides of installation handle, fixture block and the mutual joint of draw-in groove, the slide bar in the pulling spout for the slide bar outside motion, then promote the sliding block in the sliding frame downwards, make the fixture block on the draw-in bar align and insert with one side of draw-in groove, under the effect of first spring and second spring, the first spring pulling slide bar inwards moves, the second spring pulling sliding block upwards moves, thereby make fixture block and draw-in groove tightly chucking, during the dismantlement, move the fixture block downwards and outwards move, i.e. make the slide block downwards move and the slide bar outwards move, and then can break away from in the draw-in groove, thereby make and install between the handle break away from.

The utility model has the advantages that:

1. according to the utility model, through the arrangement of the dismounting mechanism, the bolts and the threaded holes, the bolts on the sealing plate are connected in the threaded holes on the connecting plate in a threaded manner before sampling, the connecting plate and the sampling assembly can be fixed, then the sampling assembly and the mounting plate are fixed through clamping of the clamping groove and the clamping block, after sampling, the bolts are dismounted, so that the sealing plate and the connecting plate are dismounted, the clamping block is separated from the clamping groove, so that the mounting plate and the mounting handle are separated, the sampling cylinder can be taken out from the placing cylinder, the sample in the sampling cylinder is not required to be taken out and the interior of the sampling cylinder is not required to be cleaned, the sample is prevented from being damaged due to external factors when the sample is taken out, a large amount of time is saved, and the sampling assembly is very convenient to dismount, so that the working efficiency and the reliability of the sample are improved.

2. According to the utility model, through the filtering mechanism, weeds in the sewage are filtered through the filtering shell, so that the weeds and the like are not mixed in the process of sampling, the case and the filtering shell can be fixed through the connecting rod, and then the cleaning plate is driven by the starting power piece to clean the surface of the filtering shell, so that the impurities are prevented from blocking the filtering shell, the sewage is prevented from entering the filtering shell, and the filtering effect of the filtering shell is prevented from being influenced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a sampling mechanism according to the present utility model;

FIG. 3 is a schematic diagram of a filtering mechanism according to the present utility model;

FIG. 4 is a schematic diagram of a sampling assembly according to the present utility model;

FIG. 5 is a schematic view of the assembly and disassembly mechanism of the present utility model;

fig. 6 is a schematic view of the internal structure of the case of the present utility model.

In the figure: 1. a base; 2. a pulley; 3. a case; 4. a push handle; 5. a fixing plate; 6. a through hole; 7. balancing weight; 8. a slide rail; 9. a motor; 10. a screw rod; 11. a slide block; 12. a sampling mechanism; 121. a hydraulic cylinder; 122. a first hydraulic lever; 123. a second hydraulic lever; 124. a filtering mechanism; 1241. a connecting plate; 1242. a threaded hole; 1243. placing a cylinder; 1244. a filter housing; 1245. a connecting rod; 1246. a chassis; 1247. a power member; 1248. cleaning a rod; 125. a mounting plate; 126. a sampling assembly; 1261. a sampling tube; 1262. a sealing plate; 1263. a water inlet pipe; 1264. a limiting ring; 1265. a bolt; 1266. a piston; 1267. a push-pull rod; 1268. a mounting handle; 127. a disassembly and assembly mechanism; 1271. a chute; 1272. a slide bar; 1273. a sliding frame; 1274. a first spring; 1275. a sliding block; 1276. a clamping rod; 1277. a clamping block; 1278. a second spring; 1279. a clamping groove; 13. placing a plate; 14. placing the hole; 15. rubber blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, a sampling device comprises a base 1, a pulley 2 is rotatably connected to the bottom of the base 1, a box 3 is fixedly connected to one side of the root of the base 1, a push handle 4 is fixedly connected to the top of the box 3, fixing plates 5 are fixedly connected to two sides of the top of the base 1, a through hole 6 is formed in the surface of one of the fixing plates 5, a balancing weight 7 is fixedly connected to one side of the base 1, the balancing weight 7 is located at the bottom of the box 3, a sliding rail 8 is fixedly connected between the two fixing plates 5, a motor 9 is fixedly connected to one side of one of the fixing plates 5, a screw rod 10 is rotatably connected to one end of the motor 9, one end of the screw rod 10 penetrates through the fixing plates 5 and the side wall of the sliding rail 8 and is rotatably connected to the inner wall of the sliding rail 8, a sliding block 11 is connected to the surface of the screw rod 10 in a threaded manner, the sliding block 11 is slidably connected to the inside the sliding rail 8, a sampling mechanism 12 is arranged at the bottom of the sliding block 11, when the device is conveniently moved through the pulley 2 and the pushing handle 4, the motor 9 is started to work when the sewage is sampled, the motor 9 drives the screw rod 10 to rotate, the rotation of the screw rod 10 drives the sliding block 11 to slide left and right in the sliding rail 8, so that the sampling mechanism 12 at the bottom of the sliding block 11 slides left and right, the sampling mechanism 12 slides to the upper part of the sewage through the through hole 6 of the mounting plate 125, then the first hydraulic rod 122 and the second hydraulic rod 123 are simultaneously moved downwards through the hydraulic cylinder 121, the filtering mechanism 124 and the sampling assembly 126 are simultaneously moved downwards until the sewage is sampled in the sewage, the second hydraulic rod 123 is started to drive the mounting handle 1268 to move upwards in the sampling process, the push-pull rod 1267 at the bottom of the mounting handle 1268 drives the piston 1266 to move upwards, and further sewage enters the interior of the sampling tube 1261 through the water inlet tube 1263.

Wherein, sampling mechanism 12 includes pneumatic cylinder 121, the bottom fixedly connected with first hydraulic stem 122 of pneumatic cylinder 121, the bottom both sides fixedly connected with second hydraulic stem 123 of pneumatic cylinder 121, the bottom of first hydraulic stem 122 is provided with filtering mechanism 124, the bottom fixedly connected with mounting panel 125 of second hydraulic stem 123, the inside both sides of filtering mechanism 124 are provided with sampling assembly 126, be provided with dismouting mechanism 127 jointly between the top of sampling assembly 126 and the mounting panel 125.

Wherein, the filtering mechanism 124 includes a connecting plate 1241, the connecting plate 1241 is fixedly connected to the bottom end of the first hydraulic rod 122, a threaded hole 1242 is provided at the top of the connecting plate 1241, two sides of the bottom of the connecting plate 1241 are fixedly connected with a placement barrel 1243, and a filtering shell 1244 is fixedly connected with the bottom of the placement barrel 1243.

Wherein, common fixedly connected with connecting rod 1245 between the bottom of two filtration shells 1244, connecting rod 1245's bottom both sides fixedly connected with machine case 1246, machine case 1246's inside fixedly connected with power piece 1247, power piece 1247's top is rotated and is connected with clearance pole 1248, when taking a sample sewage, can filter weeds etc. in river water through filtering mechanism 124, specifically, can not mix weeds etc. in the sewage through filtration shell 1244, thereby can fix machine case 1246 and filtration shell 1244 through connecting rod 1245, then drive the clearance board through starting power piece 1247 and clear up the surface of filtration shell 1244, prevent impurity jam filtration shell 1244 and influence the inside that sewage got into filtration shell 1244 and influence filtration shell 1244's filter effect.

Wherein, sample subassembly 126 includes sample tube 1261, sample tube 1261 places in the inside of placing tube 1243, the top fixedly connected with closing plate 1262 of sample tube 1261, the bottom pipe of sample tube 1261 has connected inlet tube 1263, the inner wall fixedly connected with spacing ring 1264 of sample tube 1261, the top both sides screw thread connection of closing plate 1262 has bolt 1265, place sample tube 1261 in the inside of placing tube 1243 before the sample, then through the screw thread connection of bolt 1265 on closing plate 1262 in the screw hole 1242 on connecting plate 1241, and then can fix between closing plate 1262 and the connecting plate 1241, can fix between connecting plate 1241 and the sample subassembly 126, after the sample, through dismantling bolt 1265, thereby make and dismantle between closing plate 1262 and the connecting plate 1241.

Wherein, the inside sliding connection of sampling tube 1261 has piston 1266, and the top of piston 1266 is fixedly connected with push-and-pull rod 1267, and push-and-pull rod 1267's top passes the inner wall of closing plate 1262 and fixedly connected with installation handle 1268.

The dismounting mechanism 127 comprises a sliding groove 1271, the sliding groove 1271 is formed in two sides of the inside of the mounting plate 125, a sliding rod 1272 is connected in the sliding groove 1271 in a sliding mode, one end of the sliding rod 1272 extends to the outside of the mounting plate 125 and is fixedly connected with a sliding frame 1273, and a first spring 1274 is elastically connected between the inside of the sliding groove 1271 and one end of the sliding rod 1272.

Wherein, sliding block 1275 is slidingly connected inside sliding frame 1273, clamping rod 1276 is fixedly connected at one side of sliding block 1275, clamping block 1277 is fixedly connected at one side of top of clamping rod 1276, second spring 1278 is elastically connected between top of sliding block 1275 and inner wall of sliding frame 1273, clamping grooves 1279 are opened at both sides of mounting handle 1268, clamping block 1277 and clamping grooves 1279 are mutually clamped, sliding rod 1272 in sliding groove 1271 is pulled to move sliding rod 1272 to the outside, sliding block 1275 in sliding frame 1273 is pushed downwards, clamping block 1277 on clamping rod 1276 is aligned with one side of clamping groove 1279 and inserted, sliding rod 1272 is pulled inwards by first spring 1274 and second spring 1278, sliding block 1275 is pulled upwards by second spring 1278, clamping block 7 is moved downwards and outwards even if clamping block 1277 is tightly clamped by clamping groove 1279, and clamping block 1277 can be separated from mounting handle 125 and mounting handle 1268.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present utility model, a placement plate 13 is fixedly connected to the inside of a case 3, placement holes 14 are formed on the surface of the placement plate 13, the number of the placement holes 14 is plural, rubber blocks 15 are fixedly connected to two sides of the inside of the placement holes 14, a prepared sampling assembly 126 and the sampled sampling assembly 126 can be placed through the placement case, the sampling assembly 126 can be slid into the surface of the placement plate 13 through the placement holes 14, and then the sampling assembly 126 can be prevented from sliding out of the placement holes 14 through the rubber blocks 15.

Working principle: when the device is convenient to move through the pulley 2 and the pushing handle 4, and samples sewage, the motor 9 is started to work, the motor 9 drives the screw rod 10 to rotate, the rotation of the screw rod 10 drives the sliding block 11 to slide left and right in the sliding rail 8, so that the sampling mechanism 12 at the bottom of the sliding block 11 slides left and right, the sampling mechanism 12 slides to the upper part of the sewage through the through hole 6 of the mounting plate 125, then the first hydraulic rod 122 and the second hydraulic rod 123 move downwards simultaneously through the hydraulic cylinder 121, the filtering mechanism 124 and the sampling assembly 126 move downwards simultaneously until the sewage enters the sewage to sample the sewage, in the sampling process, the second hydraulic rod 123 is started to drive the mounting handle 1268 to move upwards, the push-pull rod 1267 at the bottom of the mounting handle 1268 drives the piston 1266 to move upwards, and the sewage enters the inside of the sampling tube 1261 through the water inlet pipe 1263;

when the sewage is sampled, weeds and the like in river water can be filtered through the filtering mechanism 124, particularly, weeds and the like in the sewage are filtered through the filtering shell 1244, so that the weeds and the like can not be mixed in the process of sampling, the case 1246 and the filtering shell 1244 can be fixed through the connecting rod 1245, then the cleaning plate is driven by the starting power piece 1247 to clean the surface of the filtering shell 1244, and impurities are prevented from blocking the filtering shell 1244 to influence the interior of the filtering shell 1244 and the filtering effect of the filtering shell 1244;

before sampling, the sampling tube 1261 is placed in the placing tube 1243, then through the threaded connection of the bolt 1265 on the sealing plate 1262 in the threaded hole 1242 on the connecting plate 1241, and then can fix between the sealing plate 1262 and the connecting plate 1241, namely can fix between the connecting plate 1241 and the sampling assembly 126, afterwards, fix between the sampling assembly 126 and the mounting plate 125 through the dismounting mechanism 127, specifically, pull the slide rod 1272 in the sliding slot 1271, make the slide rod 1272 move outwards, then push the sliding block 1275 in the sliding frame 1273 downwards, make the clamping block 1277 on the clamping rod 1276 align with one side of the clamping slot 1279 and insert, under the effect of the first spring 1274 and the second spring 1278, the first spring 1274 pulls the slide rod 1272 inwards, the second spring 1278 pulls the sliding block 5 upwards, thereby make the clamping block 1277 and the clamping slot 1279 tightly, and then make between the mounting handle 1268 and the mounting plate 125 connect, namely can connect between the sampling mechanism and the mounting plate 125, after that, make the sample tube 1262 moves outwards, then, and then, the sample tube 1261 can also be removed from the mounting plate 1261 and the mounting plate 1261 can be removed from the side by side of the clamping slot 1279, and the sample tube can be removed from the mounting plate 1261, and the sample tube can be removed from the outside, and the sample tube can be conveniently, and the sample can be removed from the mounting plate 126, and the sample tube can be removed from the outside, and the sample can be conveniently, and the sample can be removed from the mounting plate 125, and can be conveniently, and can be removed.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (8)

1. A sampling device comprising a base (1), characterized in that: the utility model discloses a sampling mechanism, including base (1), base, screw rod (10), screw rod (11) are connected in the side wall rotation of fixed plate (5) and slide rail (8), through-hole (6) have been seted up on the surface of fixed plate (5), one side fixedly connected with balancing weight (7) of base (1), just balancing weight (7) are located the bottom of box (3), two common fixedly connected with slide rail (8) between fixed plate (5), one of them one side fixedly connected with motor (9) of fixed plate (5), the one end rotation of motor (9) is connected with screw rod (10), the one end of screw rod (10) is passed the lateral wall rotation of fixed plate (5) and slide rail (8) and is connected in slide rail (8) inner wall, surface threaded connection of screw rod (10) has slider (11), slider (11) sliding connection is in slide rail (8) inside, the bottom of slider (11) is provided with sampling mechanism (12).

2. A sampling device according to claim 1, wherein: the sampling mechanism (12) comprises a hydraulic cylinder (121), a first hydraulic rod (122) is fixedly connected to the bottom of the hydraulic cylinder (121), a second hydraulic rod (123) is fixedly connected to the two sides of the bottom of the hydraulic cylinder (121), a filtering mechanism (124) is arranged at the bottom of the first hydraulic rod (122), a mounting plate (125) is fixedly connected to the bottom of the second hydraulic rod (123), sampling components (126) are arranged on the two sides of the inside of the filtering mechanism (124), and a dismounting mechanism (127) is jointly arranged between the top of the sampling components (126) and the mounting plate (125).

3. A sampling device according to claim 2, wherein: the filtering mechanism (124) comprises a connecting plate (1241), the connecting plate (1241) is fixedly connected to the bottom end of the first hydraulic rod (122), a threaded hole (1242) is formed in the top of the connecting plate (1241), a placement barrel (1243) is fixedly connected to two sides of the bottom of the connecting plate (1241), and a filtering shell (1244) is fixedly connected to the bottom of the placement barrel (1243).

4. A sampling device according to claim 3, wherein: the two filter cases (1244) are fixedly connected with connecting rods (1245) at the bottoms of the two filter cases (1244), a case (1246) is fixedly connected to two sides of the bottoms of the connecting rods (1245), a power part (1247) is fixedly connected to the inside of the case (1246), and a cleaning rod (1248) is rotatably connected to the top of the power part (1247).

5. A sampling device according to claim 3, wherein: the sampling assembly (126) comprises a sampling tube (1261), the sampling tube (1261) is placed in the accommodating tube (1243), a sealing plate (1262) is fixedly connected to the top of the sampling tube (1261), a water inlet pipe (1263) is connected to the bottom tube of the sampling tube (1261), a limiting ring (1264) is fixedly connected to the inner wall of the sampling tube (1261), and bolts (1265) are connected to two sides of the top of the sealing plate (1262) in a threaded mode.

6. A sampling device according to claim 5, wherein: the inside sliding connection of sampling tube (1261) has piston (1266), the top fixedly connected with push-and-pull rod (1267) of piston (1266), the top of push-and-pull rod (1267) passes the inner wall of closing plate (1262) and fixedly connected with installation handle (1268).

7. A sampling device according to claim 2, wherein: the disassembly and assembly mechanism (127) comprises a sliding groove (1271), the sliding groove (1271) is formed in two sides of the inside of the mounting plate (125), a sliding rod (1272) is connected inside the sliding groove (1271) in a sliding mode, one end of the sliding rod (1272) extends to the outside of the mounting plate (125) and is fixedly connected with a sliding frame (1273), and a first spring (1274) is elastically connected between the inside of the sliding groove (1271) and one end of the sliding rod (1272) in a common mode.

8. A sampling device according to claim 7, wherein: the inside sliding connection of sliding frame (1273) has sliding block (1275), one side fixedly connected with clamping rod (1276) of sliding block (1275), top one side fixedly connected with fixture block (1277) of clamping rod (1276), common elastic connection has second spring (1278) between the top of sliding block (1275) and the inner wall of sliding frame (1273), and draw-in groove (1279) have been seted up to the both sides of installation handle (1268), fixture block (1277) and draw-in groove (1279) joint each other.

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