CN85105793A - The pipe clamp that is used for the steam generator secondary pipes - Google Patents

Abstract

A kind of pipe clamp of gravity control and by the stripping attachment of rotatable latch transmission.Anchor clamps comprise the clamp device with chuck component, and chuck component has the screw thread chuck of nose cone body expansion in available year.Anchor clamps also comprise the sprung parts that is connected with frustum and removably is connected with chuck component.The rotatable latch of anchor clamps is selected to separate chuck component, so that frustum embeds inflatable chuck mouth, and being expanded to tube inner wall outside the screw thread of chuck.The invention provides a kind of being easy to by the manned pipe clamp of simple extension bar.It the finite reachable from nuclear boiler secondary to the zone particularly useful when taking out sample hose.

Description

The pipe clamp that is used for the steam generator secondary pipes

The present invention relates to a kind of anchor clamps that from tube bank, clamp and take out pipe.This anchor clamps are particularly useful from the secondary taking-up heat exchanger sample hose of nuclear boiler the time.

The existing anchor clamps that clamp and pull out the pipe that draws heat transfer tube bundle in the prior art.Usually, this pipe clamp comprises that has the inflatable chuck that several clamps the spiral shell tooth, and these chucks can insert and need pull out the pipe mouth that draws.The gear train of this anchor clamps is cone expander parts normally, and it can be embedded inflatable chuck mouth at full tilt.The cone expander parts are connected with the bar that a center pit that passes chuck slidably contacts by the chuck mouth.When this root bar was imposed pulling force, the cone expander parts were upwards drawn in the chuck mouth.The wedge power that the cone expander parts are applied on the chuck mouth expands outwardly chuckwall, and the outside spiral shell tooth of chuck is tightly contacted with tube inner wall.After the clamping tube, a hydraulic jack or other draw-off gear impose pulling force to whole anchor clamps, so that pipe is pulled out from its corresponding tube bank.

In the mechanism of some this prior aries, the tension force that hydraulic jack applies both had been used to expand inflatable chuckwall, and it is tightly contacted with tube wall, was used for again pulling out pipe from tube bank., this mechanism needs a certain chuck maintaining body, and for example a kind of hydraulic operated device, scalable sleeve are so that entering ozzle by promoting inflatable chuck in the tension force drawing taper spreader part; Otherwise the tension force that hydraulic jack applies will only be pulled out ozzle to inflatable chuck, tightly not contact and chuck is not expanded to tube wall.

The pipe clamp of this prior art, though (for example be in when being easy to approaching position at ozzle, the pipe layer of nuclear boiler in elementary) have good effect, but be difficult to be used in the little approaching position easily of ozzle, for example secondary at nuclear boiler.In order to fully understand the difficulty that produces when the pipe clamp of this prior art of secondary use of this steam generator, need relate to comprehensive background such as structure relevant and maintenance procedure with nuclear boiler.

It is one elementary that nuclear boiler generally comprises, from the heat of reactor core, radioactive water elementaryly enters several heat-exchange tubes by this, these pipes may be the U type.This steam generator also comprise one secondary, these heat exchange tubes place this secondary in, on-radiation water flows by this secondary cycles, therefore, the output of the energy of reactor core can generate on-radiation steam.Pipe in secondary is arranged in the tube bank thick and fast.The pipe of steam generator is transmitted to the on-radiation water that flows through its outside surface to heat from the radioactive water that flows through inside surface.In order to promote this heat conduction, the secondary of steam generator is equipped with horizontally disposed dividing plate of several piece and back up pad, so that these heat exchange tubes are separated mutually equably.These plates all have separately several homogeneous phases every opening (also hole), pipe extends by these openings or hole, these openings on the plate are aimed at mutually, so that the pipe leg of U-shaped heat exchanger can be arranged parallel to each other.

Through after a while, the pipe leg that corrosive deposit can accumulate in heat-exchange tube managed the circumjacent section of layer and support plate hole around.The primary and secondary of pipe layer separation steam generator, back up pad is positioned at the secondary of steam generator.In order to determine that sediment is attached to the scope on the heat interchange tube wall in these zones, must be regularly elementary by steam generator from managing layer or from the secondary cutting of steam generator with take out the sample of these pipes.

When by pipe layer during from the elementary taking-up sample hose of steam generator, because ozzle is close to towards elementary pipe layer one side of steam generator, ozzle is easy to approaching.But these sample ozzles in steam generator is secondary but far are not easy approaching.When getting these secondary samples, at first must cut off from sweep as the U-shaped pipe of draw samples bigger one section, thereby the upper end of opening U-shaped pipe two legs.Cut each bar pipe leg once more with an internal diameter tube cutter then, so that pipe is removed from the pipe layer.But the upper, open end of these sample hoses is not that the sweep of the U-shaped pipe of draw samples surrounds thick and fast by other.If attempt to remove to clamp and pull out such sample hose, can produce two problems at once with the pipe clamp of prior art.At first, heavy huge clamping device can not make anchor clamps be positioned at certain depth in the tube bank between the heat-exchange tube of dense arrangement, so that make inflatable chuck suitable location in the sample ozzle.Even the cross-sectional area of pipe clamp is enough little, can injects between these contiguous pipes, but almost also always need to use certain expanding mechanism, so that hydraulic jack is located and be connected to anchor clamps.After doing like this, the suitable and reliable transmission of expanding part becomes second problem again.As previously mentioned, the suitable transmission of the anchor clamps of prior art needs certain mechanism, is used for imposing holding force when the cone expansion parts are applied pulling force, contacts so that expanding part upwards moved to collet expander.The expanding mechanism that has a this clamping device (foregoing scalable sleeve is right, or bar and hydraulic cylinder device) is difficult to process and is expensive, and the not only difficulty but also time-consuming that operates.In addition, this structure can not provide a kind of length-adjustable expanding mechanism (that is, piecewise assembly unit easily is up to obtaining needed length) that is easy to accomplish.

Therefore, need a kind of pipe clamp that can easily insert the sample hose in the intensive tube bank, this pipe clamp is partly handled by the rod spreading that simply can adjust to Len req easily.In addition,, can accomplish reliable operation, and can clamp soon and pull out sample hose from nuclear boiler if anchor clamps itself is simple in structure, thus the time minimization that the maintenance personal is spent in the radioactive environment of nuclear boiler.

The present invention mainly is made of the utensil of a pinch tube inwall, and it comprises:

(a) clamp device, comprise: a chuck component and a chuck expander, one end of this chuck component has an inflatable chuck that can insert a pipe, this chuck expander can embed above-mentioned chuck component slidably when this expander firmly embeds and expand this chuck, above-mentioned chuck component is expanded to above-mentioned tube inner wall tightly contact.

(b) the rotating lock bolt of a cover, contact matching between above-mentioned chuck and the above-mentioned expander is used to select to get loose.

Here in the most preferred embodiment of Miao Shuing, a pipe clamp that is used for the clamping tube inwall can be by a rotating lock bolt transmission.Usually, pipe clamp has a clamp device, and it comprises that a chuck component, is used to expand and embeds the expander of the inflatable chuck on this assembly and a rotatable latch of the contact force between expander and the chuck that is used to select get loose.When clamp device injected the upper, open end of pipe of an approximate vertical orientation, the weight of chuck component can provide the insertion force between expander and the chuck.Pipe clamp also comprises: one is connected and removably is connected with chuck component with expander, is used to make chuck to be suspended on the sprung parts of expander top; With a rotatable latch, it can be handled chuck component and select to throw off from sprung parts, so that the weight of chuck component makes chuck embedded expanding device, and chuck is expanded to the inside pipe wall of institute drawing tightly contact.

Adopt a rotating lock bolt select to drive one fairly simple, the pipe clamp of gravity control clamps the tube bank secondary from nuclear boiler and is particularly useful during the take-off pipe sample, just can easily locate in intensive tube bank and operate by a simple extension bar.

Rotatable latch of the present invention can comprise: one has to be used to hold and receives the latch hook of cotter way having of the lock pin that is installed on the above-mentioned sprung parts.Inflatable chuck of the present invention can be the chuck component of an integral body.This assembly comprises the inflatable chuck mouth that is positioned at the one end and is positioned at a stop collar of the inflatable chuck insertion of the restriction ozzle degree of depth of its other end.

At last, anchor clamps of the present invention also comprise an extension bar on the sprung parts that can be fixed on clamp device easily.This root extension bar can be processed into the spreading parts that removably connect of several sections different lengths, so that can adjust the length of this extension bar easily.

The following accompanying drawing of reference is read and is understood by way of example to the description of most preferred embodiment, can more detailed understanding be arranged to the present invention.

Fig. 1 is the side partial cross-sectional of a pipe clamp inventive embodiments, and pipe clamp is inserted in the openend of pipe.

Fig. 2 is the side view of the rotatable latch of this pipe clamp.

Fig. 3 A and 3B are used for making planimetric map and the side view of pipe clamp of the present invention with the stripping attachment disk of hydraulic jack coupling.

Fig. 4 A is the side view of the chuck component of anchor clamps.

Fig. 4 B is the cut-open view of the inflatable chuck of the chuck component represented among Fig. 4 A.

Fig. 4 C is the front elevation of this inflatable chuck.

Fig. 4 D is the sectional drawing that is used in the amplification of the sour jujube spiral shell tooth in the inflatable chuck of the present invention.

Fig. 4 E is the cross-sectional view along the chuck component of the E-E line taking-up of Fig. 1.

Fig. 5,6 and 7 forms the exploded view of pipe clamp of the present invention, represents the assembling of chuck expander of the present invention, sprung parts and extension device.

Fig. 8 is the side view that can be used for the spreading parts among the present invention.

With reference to Fig. 1 and 2, the element that wherein same numerical code expression is same, pipe clamp of the present invention 1 generally comprise that by one clamp device 5, a chuck expander 27 and a sprung parts 35 of chuck component 6 form.Sprung parts 35 is connected with chuck expander 27, and removably is connected with chuck component 6 by a rotatable latch 40.Lock bolt 40 is made of a latch hook 42 and a lock pin 48.As hereinafter illustrating in greater detail, can be with palmistry to rotating clamp device 5 and sprung parts 35, so that after making the lock pin disengagement on the chuck component 6, when by chuck component 6 pulling expanders 27, the weight of chuck component 6 embeds frustum 29 and expands inflatable chuck 7, thereby the spiral shell tooth 17 of chuck 7 is tightly contacted with the inwall of pipe 3.

To 4E, the chuck component 6 of anchor clamps 1 comprises with reference to Fig. 2 and 4A: the base of the carrier head 23 that far-end has one uncovered 9 inflatable chuck 7 and near-end to end in a stop collar 25.The inside of the inflatable chuck 7 of chuck component 6 comprises a frustoconical cavity 11, and its far-end ends in uncovered 9 in the chuck 7.Frustum 29 complementations of the general and chuck expander 27 of the shape of cavity 11.As reference Fig. 4 B was clear that, the near-end of frustoconical cavity 11 linked to each other with a cylindrical hole 13 of the total length that extends to chuck component 6.Return the outside of chuck component 6 now, as shown in the figure, there is several tube grip spiral shell tooth 17 outside of inflatable chuck 7.As being clear that among Fig. 4 D, each road spiral shell tooth 17 ends in sour jujube point 18.For any certain contact pressure, the barb-shaped tooth of spiral shell tooth 17 is than the common triangle spiral shell tooth inwall of clamping tube 3 better, because the cusped edge of barb-shaped tooth makes the crown 18 of spiral shell tooth 17 can more easily thrust the inwall of pipe 3.As a kind of slippage prevention device, the sour jujube point 18 of spiral shell tooth 17 thrust this superiority particular importance in the present invention at first because main chuck bulging force is just to produce when the pipe pulling force is applied to the near-end of anchor clamps 1.In most preferred embodiment, spiral shell tooth 17 is coated with Armalloy ,, thereby be easy to thrust the Inconel wall of pipe 3 so that its Rockwell's hardness is reached about 70.In addition, spiral shell tooth 17 so that collet expander 7 is easy to take out, hereinafter will describe this point in detail along left hand direction spiral surrounding chuck 7 bodies from the inwall of pipe 3.

For inflatable chuck 7 prerequisite mechanical flexibilities are provided,, have several cannelures 19a, 19b, 19c, 19d and 19e on the wall of chuck 7 so that play clamping action effectively.Shown in Fig. 4 c, these grooves are preferably equidistantly arranged around the circumference of inflatable chuck 7.The effect of these grooves is inflatable chuck 7 to be divided into several elasticity " refer to ".Though not obvious, the several jerk-fingers that constitute inflatable chuck 7 all slope inwardly when expansion state not separately slightly, so that make chuck roughly cylindrical when the frustum 29 of chuck expander 27 being drawn in the frustoconical cavity 11 of chuck 7.Like this, the spiral shell tooth 17 of anchor clamps will contact with the inwall of pipe 3 at the anchor clamps duration of work.Shown in Fig. 4 A, each cannelure 19a, 19b, 19c, 19d and 19e end at eliminate stress keyhole 21a, 21b, 21c, 21d and 21e respectively.These keyholes the frustum 29 of chuck expander 27 be drawn into inflatable chuck 7 complementation, disperse the stress of above-mentioned cannelure terminal point to concentrate effectively during frustoconical cavity 11.

As previously mentioned, the near-end of chuck component 6 has a base of the carrier head 23 and a stop collar 25.As shown in the figure, the end of inflatable chuck 7 is preferably converged by the front of a curved shoulder and base of the carrier head 24, so that when the operator inserted anchor clamps 1 in pipe 3 openends as shown in Figure 1 position, the joint between chuck 7 and the seat 23 can not be suspended on the mouth of pipe edge of pipe 3.Base of the carrier head 23 has two effects.At first, seat 23 cylindrical shape makes the screw thread outside 15 inwall coaxial positioning with respect to pipe 3 of inflatable chuck 7 when the clamp device 5 of anchor clamps 1 inserts pipes 3 uncovered.Secondly, in tube grip operating period, when the frustum 29 of chuck expander 27 being embedded and expands chuck 7, the weight that base of the carrier head 23 can provide chuck component 6 to have.The near-end of chuck component 6 ends in a stop collar 25.25 inflatable chucks 7 of restriction of stop collar are along the vital role of the longitudinal axis insertion depth of pipe 3.Stop collar 25 also makes clamp device 5 be seated in the openend of pipe 3, so that born the weight of chuck component 6 by pipe 3 during clamp operation.Though should be noted that stop collar 25 and base of the carrier head 23 are whole in most preferred embodiment, in an other embodiment, can on base of the carrier head 23, assemble a scalable stop collar of forming by a ring and dog screw.This structure can provide a kind of can vertically regulate the device of inflatable chuck 7 along the longitudinal axis insertion depth of pipe 3 before the tube grip operation.Should be noted that at needs to penetrate the degree of depth of pipe 3 when very shallow that can replace above-mentioned ring with a sleeve, in most preferred embodiment, chuck component 6 is by Vascomax

300VM tool steel is made, and its diameter is very little, so anchor clamps 1 easily put in the hole on the back up pad from nuclear boiler.Xuan Ding size can clamp with drawing anchor clamps 1 to be arranged in sample hose below the secondary back up pad of steam generator like this.

Chuck expander 27 far-ends have a frustum 29, and near-end has a bar 31 that ends in thread head 33.The cylindrical hole 13 that the bar 31 of expander 27 slidably passes chuck component 6 central authorities stretches out.If suitably handle anchor clamps 1, the bar 31 of chuck expander 27 must pass freely through hole 13 in the clear.Identical with chuck component, chuck expander 27 is preferably also by Vascomax

300VM tool steel is made.Though all not shown in a few width of cloth accompanying drawings, the far-end of frustum 29 can comprise that is limited the annular flange flange that cone 29 can be inserted the degree of depth of the complementary frustoconical cavity 11 in the chuck 7.When this defining flange is used in the radially clamping force value that needs " finger " in the inflatable chuck 7 of restriction cone 29 expanded supports.When fierce those tube walls of drawing are easy to the sample hose of the corrosion of breaking because of radial pressure, need be to the radially this restriction of clamping force.

Now, specifically with reference to Fig. 1,5 and 6, the most preferred embodiment of anchor clamps 1 also comprises a sprung parts 35, and it has the threaded hole 36 of the thread head 33 of a bar 31 that is used to be screwed into chuck expander 27.The central part of sprung parts 35 has plane 38a, the 38b of pair of parallel, and this can be contained in the groove 53 of disk represented among Fig. 3 A and the 3B 52 plane, so that this position of anchor clamps 1 can be coupled with hydraulic jack.At last, the near-end of sprung parts 35 is preferably with another threaded hole 37, is used to be screwed into the pin thread 57 of spreading parts 55.

Referring now to Fig. 1,2,4A and 5, pipe clamp 1 of the present invention comprises that also one is used for removably chuck component 6 is connected to rotatable lock bolt assemblies 40 on the sprung parts 35.This latch assembly 40 comprise one preferably with the stop collar 25 whole latch hooks 42 that constitute that are positioned at chuck component 6 near-ends, and the lock pin 48 in hole 50 that is contained in sprung parts 35 far-ends.What this lock pin can embed latch hook 42 receives cotter way 44, and the cotter way 44 of receiving has a upper limb 46, and it is preferably little curved, so that apply to draw when carrying between chuck component 6 and sprung parts 35 in the weight of chuck component 6 pin 48 is locked in the groove 44.Yet, in case this draw carry to disappear-for example since stop collar 25 be seated on the openend of pipe 3-as long as counterclockwise twist the several years with handgrip sprung parts 35, pin 48 will easily be thrown off from groove 44.

Fig. 7 represents the extension device 55 of anchor clamps 1 of the present invention.The near-end of extension device 55 has a male screw portion 57, and it can be screwed into the threaded hole 37 of sprung parts 35.Identical with sprung parts 35, the central part of extension device has pair of parallel plane 61a, 61b, and this can be contained in the groove 53 of disk 52 to the plane; The near-end of this extension device also has a dextrorotation screw 59.

At last, pipe clamp 1 also comprises the spreading device of being made up of one or more long joining section 71, has expressed its example among Fig. 8.Every long joining section 71 far-ends all have a dextrorotation pin thread 73, and near-end all has a dextrorotation female screw 75.In addition, every long joining section 71 all has pair of parallel plane 77a, 77b, and this can be contained in the plane in the groove 53 of previously described disk 52, with hand coupling cramp 1 and hydraulic jack.After the pin thread of first long joining section 71 is screwed into the threaded hole 59 of extension device 55, this long joining section 71 front and back of any number can be screwed in together, form the spreading device of any Len req.In most preferred embodiment, each long joining section 71 is all made with No. 304 stainless steels, and is the same with sprung parts 35 with extension device 55.In order to make sections 71 form the spreading device of Len req with minimum screw engagement, sections 71 is preferably made all lengths between 1 meter and 15 centimetres.In order when anchor clamps 1 accident is fallen in the tube bank, to be convenient to take out, in the threaded hole 75 of last long joining section 71, be screwed into a bolt ring 65 that has male screw portion 67 and ring 69.When anchor clamps 1 owing to when tube bank fallen in error, bolt ring 65(is as shown in fig. 1) ring 69 can easily tangle and drag with small stuff.

In the operation,, be screwed in together, constitute the spreading device of Len req with several long joining sections 71 front and back according to mentioned above.Preferably first bigger long joining section 71 1 meter is screwed in together, up to the spreading device that obtains to be roughly Len req., with 15 centimetre long joining sections 71 finish this spreading device, thereby the spreading device that obtains is made up of minimum screw engagement thereafter.

Next step is screwed into the pin thread 73 of first long joining section 71 threaded hole 59 of extension device 55.Make pipe clamp 1 get vertical direction with hand then, chuck 7 points to down, and lock pin 48 is locked in receiving in the cotter way 44 of rotatable lock bolt assemblies 40.

The chuck component 6 of clamp device 5 inserted and be roughly vertical orientated pipe 3, itself be seated on the periphery of pipe 3 openends up to the stop collar 25 of chuck component 6 thereafter.The operator of anchor clamps from strong contact can perception this be located, when stop collar 25 was run into the openend of pipe 3, the spreading device can be delivered to the operator to this contact on hand.When stop collar was seated on the pipe, pipe 3 bore the total weight of chuck component 6.Therefore, no longer including any drawing between the arc upper limb 46 of the groove 44 of lock pin 48 that is connected with sprung parts 35 and latch hook 42 carries.So, sprung parts 35 being turned the several years counterclockwise by the spreading parts of forming by sections 71 with hand, pin 48 can be easily from receiving the cotter way disengagement.

If pipe 3 is very loose, it pulls out then available handgrip.If but pipe is not loose, next step must use hydraulic jack.In this case, the spreading means for engaging of disk 52, so that make hydraulic jack and anchor clamps 1 coupling with anchor clamps 1.Then the hydraulic jack of an ordinary construction is received on the disk 52.In most preferred embodiment, hydraulic jack is installed in one can be along on the platform of x on the plane, tube bank top and the slip of y axle.This slip pedestal makes the operator can easily hydraulic jack be put into suitable coupling position with respect to the spreading device after inserting the sample hose 3 that need pull out with the handgrip anchor clamps.Then, drive hydraulic jack, so that the near-end of anchor clamps 1 is imposed pulling force.This pulling force draws in the frustum 29 of chuck expander 27 in the mouth 9 of inflatable chuck 7.The gross weight of the flexible and chuck component 6 of inflatable chuck 7 walls is all passed through selection, therefore, offsets at the pulling force that is transmitted by chuck expander 27 before the weight of chuck component 6, and the sour jujube spiral shell tooth 17 on chuck 7 outside surfaces has just contacted with the inwall of pipe 3.Owing to carry out under water in the secondary clamp operation of most of nuclear boilers, should select the weight of chuck component 6, chuck 7 can be expanded under the situation of chuck component 6 because of the influence weight reduction of buoyancy.After the frustum 29 of chuck expander 27 was drawn in the mouth 9 of chuck 7, the pulling force that hydraulic jack is added on the pipe clamp 1 was big more, and the sour jujube spiral shell tooth 17 of inflatable chuck 7 is just tight more with contacting of pipe 3 inwalls.So pipe 3 is pulled out from the secondary of steam generator.

Should be noted that in form a little to change that anchor clamps can be made the stop collar 25 of the chuck component 6 on the periphery that its work do not need itself to be seated in pipe 3 openends.Especially, if the upper limb 46 of the groove 44 of latch hook 42 is made straight rather than arc, anchor clamps 1 can be made like this, even the time spent is only inserted inflatable chuck 7 openend of pipe 3, and turn the spreading device of anchor clamps soon, throw off from groove 44 by the rotator inertia of chuck component 6 so that sell 48.Gravity will make chuck component 6 freely glide along the bar 31 of expander 27 then, effectively embed the mouth 9 of inflatable chuck 7 up to frustum 29, tightly contact thereby chuck 7 is expanded to the inwall of pipe 3.

For inflatable chuck 7 is got loose from the inwall of pipe 3, the operator of anchor clamps 1 need only take off spreading device and extension device 55, and applies an of short duration fixed pressure on sprung parts 35.This pressure is released frustums 29 from the frustoconical of inflatable chuck 7 inner 11, and the jerk-finger of the chuck 7 that is formed by groove 19a, 19b etc. is evenly inwardly bent, thereby from the inwall of pipe 3 chuck component 7 that gets loose.Openend towards pipe 3 pushes away sprung parts 35 then, and clockwise rotates the several years, so that make lock pin 48 be locked in receiving in the cotter way 44 of latch hook 42 once more.Can understand in the processing regulation this moment to spiral shell tooth 17 left-hand teeth distances.When the operator turned sprung parts 35 along clockwise direction with reclosing latch assembly 40, the left-hand teeth on the spiral shell tooth 17 was apart from the spiral shell tooth is moved forward slightly along the inwall of pipe 3.This moving forward of spiral shell tooth 17 curves inwardly it, and their sour jujube point 18 is thrown off from the inwall of pipe 3.

Claims (18)

1, a kind of utensil that is used for the clamping tube inwall, comprise: (a) clamp device, have a chuck component and a chuck expander, one end of this chuck component has an inflatable chuck that can insert a pipe, this chuck expander can embed above-mentioned chuck component slidably when this expander firmly embeds and expand this chuck, this chuck is expanded to above-mentioned tube inner wall tightly contact; (b) the rotating lock bolt of a cover, chimeric between above-mentioned chuck and the above-mentioned expander is used to select to get loose.

2, the utensil of claim 1, wherein pipe roughly is vertical, and wherein said insertion force to small part is that weight by chuck component provides.

3, the utensil of claim 1, wherein said expander is roughly tapered and be used for embedding slidably in the medium pore of described chuck component.

4, the utensil of claim 3, also comprise a sprung parts, it is connected with described expander, and removably is connected described chuck is suspended on the top of described expander with described chuck component, and the described lock bolt in this utensil makes described chuck component select to break away from from described sprung parts.

5, the utensil of claim 4, wherein said chuck component has a stop collar in described inflatable chuck opposite end, be used to limit the degree of depth that this inflatable chuck can insert described pipe, and be used for making the described chuck component of described anchor clamps to be seated on the openend of described pipe, so that the weight that this end of this pipe bears this chuck component.

6, the utensil of claim 5 comprises: when the weight of described chuck component is born by the described openend of described pipe, handle the device of described lock bolt by rotating described sprung parts.

7, the utensil of claim 5, wherein said lock bolt comprise a hook part and pin parts, and wherein said pin parts can be thrown off from described hook part by rotating described sprung parts when the weight of described chuck component is born by the openend of described pipe.

8, the utensil of claim 7, wherein said hook part are fixed on the described stop collar, and described pin parts are fixed on the described sprung parts.

9, the pipe clamp of claim 5, wherein said expander slidably contacts with chuck component, so that this expander can slip into this inflatable chuck.

10, the pipe clamp of claim 5, wherein said expander comprise cone expansion parts that link to each other with described sprung parts by a bar.

11, the pipe clamp of claim 10, wherein said chuck component have an opening from described inflatable chuck to extend to the hole of this chuck component other end, and the described bar of wherein said expander passes this hole.

12, the pipe clamp of claim 5 also comprises the spreading device of the described sprung parts of a spreading.

13, the pipe clamp of claim 12, wherein said spreading device comprise that several can interconnective spreading parts, utilize these spreading parts can adjust the length of described spreading device.

14, the pipe clamp of claim 12, wherein said spreading device comprises a threaded rod.

15, the pipe clamp of claim 13, wherein said several spreading parts interconnect by before and after the threaded connector.

16, the pipe clamp of claim 5, wherein said pipe roughly are vertical orientated.

17, the pipe clamp of claim 5, wherein said sprung parts end in a bolt ring.

18, the pipe clamp of claim 5, wherein said inflatable chuck comprise several sour jujube spiral shell teeth, are used for tightly contacting with described tube inner wall.

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