CN209621249U - Fishing spear - Google Patents

Fishing spear Download PDF

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Publication number
CN209621249U
CN209621249U CN201822192029.0U CN201822192029U CN209621249U CN 209621249 U CN209621249 U CN 209621249U CN 201822192029 U CN201822192029 U CN 201822192029U CN 209621249 U CN209621249 U CN 209621249U
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CN
China
Prior art keywords
pipe
guide shoe
fishing spear
ontology
oil
Prior art date
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Active
Application number
CN201822192029.0U
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Chinese (zh)
Inventor
邓鲁宁
马生林
张康卫
纪要波
翟立军
张宏峰
袁龙
崔臣滨
兰大江
贺佳
姜艳
段国东
张仁杰
冉祥华
白尘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201822192029.0U priority Critical patent/CN209621249U/en
Application granted granted Critical
Publication of CN209621249U publication Critical patent/CN209621249U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of fishing spears, belong to oil well apparatus field.The fishing spear includes: top connection (1), ontology (2), guide shoe (3) and magnetic block (4).The first end (21) of the ontology (2) is connect with the guide shoe (3), and the second end of the ontology (2) is connect with the first end (11) of the top connection (1);It is provided with holding tank on the position of the guide shoe (3) in the side wall of the ontology (2), the magnetic block (4) is located in the holding tank, and the magnetic block (4) is used for absorbent bodies.Fishing spear provided by the utility model can be smoothly in tripping in oil-water well, and the junk in oil-water well can be easily adsorbed on the fishing spear, and it is simple and convenient to salvage process, and it is higher to salvage efficiency.

Description

Fishing spear
Technical field
The utility model relates to oil well apparatus field more particularly to a kind of fishing spears.
Background technique
Oil-water well can often fall into after used a period of time, in the casing of oil-water well such as casing fishing lance slip insert, The ironys tablet such as slip insert of packer.In order to not influence the normal use of oil-water well, need in time to beat these junks Fishing.
Currently, often salvaging the junk in oil-water well by fishing socket.Fishing socket includes top connection and cylinder, and the of cylinder The connection of the first end of one end and top connection, the second end of cylinder are provided with multiple pawls, the second end connection of top connection in the axial direction There is oil pipe.By the oil pipe by the bottom of the casing of fishing socket tripping in oil-water well, fishing socket is then pushed, makes to be arranged on cylinder Multiple pawls are bent simultaneously, and junk is covered in cylinder, above mention fishing socket finally by the oil pipe, to realize in oil-water well The salvaging of junk.
However, the size of junk is usually larger, can often be stuck in oil-water well, or be attached on the borehole wall of oil-water well.On cylinder It is different after the multiple pawls bending being arranged surely to cover on junk in cylinder just, junk could not be covered on after this multiple pawl bending When in cylinder, the salvaging that can not achieve after fishing socket to the junk in oil-water well is above proposed, this just needs to repeat to salvage, and causes to beat Fish out low efficiency.
Utility model content
The utility model provides a kind of fishing spear, can solve the problem of salvaging low efficiency in the related technology.
The technical solution is as follows:
On the one hand, a kind of fishing spear is provided, the fishing spear includes: top connection, ontology, guide shoe and magnetic block;
The first end of the ontology is connect with the guide shoe, and the first end of the second end of the ontology and the top connection connects It connects;
It is provided with holding tank on the position of the guide shoe in the side wall of the ontology, the magnetic block is located at the appearance It receives in slot, the magnetic block is used for absorbent bodies.
Optionally, the top connection, the ontology and the guide shoe are provided with through-hole in the axial direction, and it is described on connect Head, the ontology are connected to the through-hole that the guide shoe is arranged in the axial direction.
Optionally, the quantity of the holding tank is greater than or equal to 2.
Optionally, the quantity of the magnetic block is greater than or equal to 2, has in each holding tank at least two holding tanks At least one magnetic block.
Optionally, the ontology includes first pipe and second pipe, and the first pipe includes first part and second Part;
The first end of the first part of the first pipe is connect with the guide shoe, the first part of the first pipe Second end is connect with the first end of the second part of the first pipe, the second end of the second part of the first pipe and institute The first end connection of second pipe is stated, the second end of the second pipe is connect with the first end of the top connection, and described first The diameter of the diameter of the first part of pipeline and the second pipe is all larger than the diameter of the second part of the first pipe;
The end face of the second end of the first part of the first pipe, the first pipe second part outer wall and institute It states and is formed with the holding tank between the end face of the first end of second pipe.
Optionally, the end face of the second end of the first part of the first pipe and the second part of the first pipe The angle between target site in outer wall is acute angle, the of the end face of the first end of the second pipe and the first pipe The angle between target site in the outer wall of two parts is right angle or acute angle, in the outer wall of the second part of the first pipe Target site be portion between the second end of first part and the first end of the second pipe of the first pipe Position;Alternatively,
In the outer wall of the second part of the end face of the second end of the first part of the first pipe and the first pipe Target site between angle be right angle or acute angle, the of the end face of the first end of the second pipe and the first pipe The angle between target site in the outer wall of two parts is acute angle.
Optionally, the width of the notch of the holding tank is less than the width of the slot bottom of the holding tank.
Optionally, the guide shoe is nib type guide shoe, and the nib type guide shoe has lead-in chamfered.
Optionally, it is arranged in the lead-in chamfered fluted.
Optionally, the guide shoe is starting taper formula guide shoe.
Technical solution provided by the utility model can at least bring it is following the utility model has the advantages that in the utility model embodiment, Fishing spear includes top connection, ontology, guide shoe and magnetic block, since the first end of ontology is connect with guide shoe, the second end of ontology with The first end of top connection connects, so entering grease in the fishing spear at first when by the fishing spear tripping in oil-water well The part of well is guide shoe, and guide shoe has certain guiding role, so under the guidance of guide shoe, it can be smoothly by the fishing spear In tripping in oil-water well.And due to being provided with holding tank on the position of guide shoe in the side wall of ontology, magnetic block is located at holding tank It is interior, so the junk in oil-water well will be easy under the magneticaction of magnetic block after in by the fishing spear tripping in oil-water well It is adsorbed on the fishing spear.Later, the fishing spear is above mentioned, can realize the salvaging to junk, salvaging process is simple and convenient, salvages Efficiency is higher.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the first fishing spear provided by the embodiment of the utility model;
Fig. 2 is the structural schematic diagram of second of fishing spear provided by the embodiment of the utility model;
Fig. 3 is the structural schematic diagram of the third fishing spear provided by the embodiment of the utility model;
Fig. 4 is the structural schematic diagram of the 4th kind of fishing spear provided by the embodiment of the utility model.
Appended drawing reference:
1: top connection, 2: ontology, 3: guide shoe, 4: magnetic block, 11: the first end of top connection, 21: the first end of ontology, 22: First pipe, 23: second pipe, 31: lead-in chamfered, 221: the first part of first pipe, 311: groove.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is described in further detail.
Fig. 1 is a kind of structural schematic diagram of fishing spear provided by the embodiment of the utility model, and Fig. 2 is that the utility model is implemented The structural schematic diagram for another fishing spear that example provides.As depicted in figs. 1 and 2, which includes: top connection 1, ontology 2, draws Shoes 3 and magnetic block 4.The first end 21 of ontology 2 is connect with guide shoe 3, and the second end of ontology 2 is connect with the first end 11 of top connection 1; It is provided with holding tank on the position of guide shoe 3 in the side wall of ontology 2, magnetic block 4 is located in holding tank, and magnetic block 4 is for inhaling Addendum body.
It should be noted that the structure of top connection 1 can be open column shape body structure, the size of top connection 1 can basis Actual needs is to be arranged.In practical applications, due to the limited length of the fishing spear, and the depth of oil-water well is usually larger, institute Multiple-tubing string can be sequentially connected in the second end of top connection 1, with by the multiple-tubing string that the smooth tripping in of the fishing spear is oily In well, then passes through the multiple-tubing string and put forward the fishing spear out of oil-water well.
In addition, the structure of ontology 2 can be open column shape body structure.Ontology 2 can be an one-time formed length of tubing, It can be as made of more piece Tube formation.Connection type between the first end 21 and guide shoe 3 of ontology 2 can be welding, spiral shell Line connection etc., the connection type between the second end of ontology 2 and the first end 11 of top connection 1 can be to weld, be threadedly coupled.
Furthermore the annular that the position that holding tank can be in the side wall of ontology 2 close to guide shoe 3 is arranged radially is recessed Slot.The quantity of holding tank can be 1, can also be greater than or equal to 2, as long as guaranteeing this holding tank or at least two holding tanks In each holding tank in have at least one magnetic block 4.The size of holding tank can be arranged according to actual needs, example Such as, the width of the notch of holding tank can be equal to the width of the slot bottom of holding tank, and the width of the notch of holding tank might be less that The width of the slot bottom of holding tank.
Finally, the quantity of magnetic block 4 can be arranged according to actual needs, for example, the quantity of magnetic block 4 can be 1, 2 can be greater than or equal to.The shape of magnetic block 4 can be arranged according to the shape of holding tank, and the size of magnetic block 4 can basis The size of holding tank is arranged, as long as guarantee each magnetic block 4 in this magnetic block 4 or at least two magnetic blocks 4 To be located in holding tank.
It is worth noting that the first end 21 due to ontology 2 is connect with guide shoe 3, second end and the top connection 1 of ontology 2 First end 11 connects, so entering the portion of oil-water well in the fishing spear at first when by the fishing spear tripping in oil-water well It is divided into guide shoe 3, and guide shoe 3 has certain guiding role, it, can smoothly will be under the fishing spear so under the guidance of guide shoe 3 Enter in oil-water well.And due to being provided with holding tank on the position of guide shoe 3 in the side wall of ontology 2, magnetic block 4 is located at holding tank It is interior, so the junk in oil-water well will be easy under the magneticaction of magnetic block 4 after in by the fishing spear tripping in oil-water well It is adsorbed on the fishing spear.Later, the fishing spear is above mentioned, can realize the salvaging to junk, salvaging process is simple and convenient, salvages Efficiency is higher.
Optionally, as shown in Figures 1 to 4, through-hole has can be set in top connection 1, ontology 2 and guide shoe 3 in the axial direction, and Top connection 1, ontology 2 are connected to the through-hole that guide shoe 3 is arranged in the axial direction.
It should be noted that the aperture for the through-hole that top connection 1, ontology 2 and guide shoe 3 are arranged in the axial direction can be according to reality Border needs to be arranged, and the aperture for the through-hole that top connection 1, ontology 2 and guide shoe 3 are arranged in the axial direction can be identical, can not also phase Together, as long as guaranteeing that top connection 1, ontology 2 are connected to the through-hole that guide shoe 3 is arranged in the axial direction, so that flushing fluid can be by above connecing First 1, the through-hole that ontology 2 and guide shoe 3 are arranged in the axial direction flow to the shaft bottom of oil-water well.
In practical applications, when needing to salvage the junk in oil-water well by the fishing spear, more piece oil can be first passed through More than the junk that the fishing spear tripping in is located in oil-water well by pipe at 2 meters or so of position.Then, from well head to the more piece oil pipe It is inside passed through flushing fluid, it is logical to flow through that top connection 1, ontology 2 and guide shoe 3 be arranged in the axial direction for the flushing fluid being passed through in the more piece oil pipe Shaft bottom is flow to behind hole, then the borehole wall of annular space and oil-water well between the borehole wall of oil-water well and the outer wall of the fishing spear is more with this Annular space between Oil-saving pipe backflows to ground, realizes the direct flushing to oil-water well.During the direct flushing, work as stream The borehole wall to annular space and oil-water well of the flushing fluid in shaft bottom between the borehole wall of oil-water well and the outer wall of the fishing spear is more with this When annular space between Oil-saving pipe backflows to ground, junk may be will drive to mobile close to the direction of well head.In junk to close During the direction of well head is mobile, junk can be easy to the magnetic block 4 in the fishing spear, to can be easy to by this dozen Magnetic block 4 in fishing cone adsorbs.After junk is adsorbed on the fishing spear, by the more piece oil pipe by the fishing spear from grease Put forward in well, so that it may the salvaging to junk is realized, to improve salvaging efficiency.
Optionally, as shown in Figure 3 and Figure 4, when ontology 2 is as made of more piece Tube formation, ontology 2 may include One pipeline 22 and second pipe 23, first pipe 22 include first part 221 and second part (not shown).First pipe The first end of 22 first part 221 is connect with guide shoe 3, the second end and first pipe of the first part 221 of first pipe 22 The first end of 22 second part connects, and the second end of the second part of first pipe 22 and the first end of second pipe 23 connect Connect, the second end of second pipe 23 is connect with the first end 11 of top connection 1, the diameter of the first part 221 of first pipe 22 and The diameter of second pipe 23 is all larger than the diameter of the second part of first pipe 22;The of the first part 221 of first pipe 22 The end face at two ends, the outer wall of the second part of first pipe 22 and second pipe 23 first end end face between be formed with receiving Slot.
It should be noted that connection type between the first end and guide shoe 3 of the first part 221 of first pipe 22 can be with To weld, being threadedly coupled.The first part 221 of first pipe 22 and the second part of first pipe 22 can be integrated molding , may not be it is integrally formed, when the first part 221 of first pipe 22 and the second part of first pipe 22 are not one When body formed, between the first end of the second part of the second end and first pipe 22 of the first part 221 of first pipe 22 Connection type can for welding, be threadedly coupled etc..The of the second end of the second part of first pipe 22 and second pipe 23 Connection type between one end can be welding, threaded connection etc..The second end of second pipe 23 and the first end 11 of top connection 1 Between connection type can for welding, be threadedly coupled etc..
In addition, since the diameter of the first part 221 of first pipe 22 and the diameter of second pipe 23 are all larger than the first pipe The diameter of the second part in road 22, so when the first end of the second part of first pipe 22 and the first part of first pipe 22 After 221 second end connects, and the second end of the second part of first pipe 22 is connect with the first end of second pipe 23, the The end face of the second end of the first part 221 of one pipeline 22, the outer wall of the second part of first pipe 22 and second pipe 23 Holding tank is capable of forming between the end face of first end.Wherein, the outer wall of the second part of first pipe 22 can be used as holding tank Slot bottom, the end face of the first end of the end face and second pipe 23 of the second end of the first part 221 of first pipe 22 can be made For the cell wall of holding tank.
Optionally, in order to realize that the width of the notch of holding tank is less than the width of the slot bottom of holding tank, first pipe 22 The structure of first part 221 and the structure of second pipe 23 can be any one in the following two kinds structure:
The first structure: second of the end face of the second end of the first part 221 of first pipe 22 and first pipe 22 Point outer wall in target site between angle be acute angle, the of the end face of the first end of second pipe 23 and first pipe 22 The angle between target site in the outer wall of two parts is right angle or acute angle, in the outer wall of the second part of first pipe 22 Target site is the position between the second end of first part 221 and the first end of second pipe 23 of first pipe 22.
It should be noted that when the second end of the first part 221 of first pipe 22 end face and first pipe 22 the When the angle between target site in the outer wall of two parts is acute angle, no matter the end face of the first end of second pipe 23 and first The angle between target site in the outer wall of the second part of pipeline 22 is right angle or acute angle, no matter the also size tool of acute angle Body is how many, the end face of the second end of the first part 221 of first pipe 22, the outer wall of the second part of first pipe 22 and The width of the notch of the holding tank formed between the end face of the first end of two pipelines 23 is respectively less than the width of the slot bottom of holding tank.
Second of structure: second of the end face of the second end of the first part 221 of first pipe 22 and first pipe 22 Point outer wall in target site between angle be right angle or acute angle, the end face of the first end of second pipe 23 and first pipe The angle between target site in the outer wall of 22 second part is acute angle.
It should be noted that when in the outer wall of the second part of the end face and first pipe 22 of the first end of second pipe 23 Target site between angle when being acute angle, no matter the end face and first of the second end of the first part 221 of first pipe 22 The angle between target site in the outer wall of the second part of pipeline 22 is right angle or acute angle, no matter the also size tool of acute angle Body is how many, the end face of the second end of the first part 221 of first pipe 22, the outer wall of the second part of first pipe 22 and The width of the notch of the holding tank formed between the end face of the first end of two pipelines 23 is respectively less than the width of the slot bottom of holding tank.
It is worth noting that, no matter the structure of the first part 221 of first pipe 22 and the structure of second pipe 23 are upper Which kind of in two kinds of structures is stated, the width of the notch of holding tank can all be less than the width of the slot bottom of holding tank, in this case, will After magnetic block 4 is placed in holding tank, magnetic block 4 will be not easy to drop out out of holding tank.In actual installation, when holding tank When the width of notch is less than the width of the slot bottom of holding tank, magnetic block 4 can be first placed on to the second part of first pipe 22 On outer wall, then the second end of the second part of first pipe 22 and the first end of second pipe 23 connected, by strong magnetic Block 4 is limited in holding tank.
Optionally, as shown in figures 1 and 3, guide shoe 3 can be nib type guide shoe, and nib type guide shoe has lead-in chamfered 31.
It should be noted that the gradient of lead-in chamfered 31 can be arranged according to actual needs, the utility model embodiment It is not specifically limited in this embodiment.
It is worth noting that when the guide shoe 3 in the fishing spear is nib type guide shoe, by the fishing spear tripping in oil-water well It is oblique due to guiding at first into the lead-in chamfered 31 that the part of oil-water well is in nib type guide shoe in the fishing spear when middle Face 31 has certain gradient for the borehole wall of oil-water well, and close to the portion in the shaft bottom of the oil-water well in lead-in chamfered 31 The size divided is smaller, so nib type guide shoe can be guided effectively in the fishing spear tripping in oil-water well.
It couches or reclines in oil-water well in addition, the junk in oil-water well is likely to be, it is also possible to be to be attached to oil vertically On the borehole wall of well.When junk is to be attached on the borehole wall of oil-water well vertically, since the size of junk is bigger, so junk Height locating for top is higher, and after in the fishing spear tripping in oil-water well for will have nib type guide shoe, the top of junk will very It may be within the scope of the magnetic force of the magnetic block 4 in the fishing spear, so that junk can be in the magnetic block 4 in the fishing spear It is mobile to the direction of the magnetic block 4 in the fishing spear under magneticaction, until being adsorbed on the fishing spear.When junk is horizontal When lying or reclining in oil-water well, height locating for the top of junk is lower, when the fishing spear tripping in that will have nib type guide shoe After in oil-water well, the top of junk may not be within the scope of the magnetic force of the magnetic block 4 in the fishing spear, at this point it is possible to rotate The fishing spear stirs junk by the lead-in chamfered 31 of the nib type guide shoe in the fishing spear, and junk is dialled lead-in chamfered 31 It is likely on the borehole wall for being attached to oil-water well vertically under dynamic, the top of junk will be in the strong magnetic in the fishing spear as a result, Within the scope of the magnetic force of block 4, later, junk can be under the magneticaction of the magnetic block 4 in the fishing spear in the fishing spear Magnetic block 4 direction it is mobile, until being adsorbed on the fishing spear, so as to improve the salvaging efficiency of the fishing spear.
Further, it as shown in figure 3, when guide shoe 3 is nib type guide shoe, can be set in the lead-in chamfered 31 in guide shoe 3 It is equipped with groove 311.
It should be noted that the size of groove 311 can be arranged according to actual needs, the utility model embodiment is to this It is not specifically limited.
It is worth noting that when junk is reclined in oil-water well, height meeting locating for one end in the both ends of junk Height locating for the other end higher than junk.Salvaging where the nib type guide shoe that will there is groove 311 in lead-in chamfered 31 After boring in tripping in oil-water well, the fishing spear can be slightly rotated, locating higher-height one end will in the both ends of junk at this time It is likely to ride on the groove 311 of lead-in chamfered 31.In such a case, it is possible to continue to rotate the fishing spear, junk will at this time It is easy on the borehole wall for being attached to oil-water well vertically under the guidance of groove 311 and lead-in chamfered 31, the top of junk will as a result, It is within the scope of the magnetic force of the magnetic block 4 in the fishing spear, later, junk can be made in the magnetic force of the magnetic block 4 in the fishing spear It is mobile with the lower direction to the magnetic block 4 in the fishing spear, until being adsorbed on the fishing spear, to improve the salvaging The salvaging efficiency of cone.
Optionally, as shown in Figure 2 and Figure 4, guide shoe 3 can also be starting taper formula guide shoe.
It should be noted that the diameter of one end of the separate ontology 2 of starting taper formula guide shoe can be less than leaning on for starting taper formula guide shoe The diameter of one end of nearly ontology 2, in this way, the side wall of starting taper formula guide shoe can surround a cone, the i.e. head of starting taper formula guide shoe Size can be less than starting taper formula guide shoe tail portion size.
It is worth noting that, the casing in oil-water well is usually the diameter of the more piece pipeline made of more piece Tube formation May not be identical, there may be the case where small diameter pipeline is hung under large-diameter pipeline, for example, the pipe of the well head close to oil-water well The diameter in road may be greater than the diameter of the pipeline close to the shaft bottom of oil-water well.In this case, by the fishing spear tripping in oil When well, need from the lesser pipeline of pipeline tripping in diameter being relatively large in diameter, careless slightly, which will be smaller by diameter Pipeline in one end for being connect with the pipeline being relatively large in diameter stop and be difficult to continue to move down.And in the utility model embodiment In, when the guide shoe 3 of the fishing spear is starting taper formula guide shoe, since the side wall of starting taper formula guide shoe can surround a cone, inciting somebody to action It is at first the head of starting taper formula guide shoe into the part of oil-water well when in the fishing spear tripping in oil-water well, in the fishing spear, And the size on the head of starting taper formula guide shoe is less than the size of the tail portion of starting taper formula guide shoe, so when the fishing spear is from being relatively large in diameter When the lesser pipeline of pipeline tripping in straight well, what which will not be connect in the lesser pipeline of diameter with the pipeline being relatively large in diameter One end stops, and that is to say, starting taper formula guide shoe can effectively guide the fishing spear lesser from the pipeline tripping in diameter being relatively large in diameter Pipeline, and then smoothly in tripping in oil-water well.
In the utility model embodiment, fishing spear includes top connection 1, ontology 2, guide shoe 3 and magnetic block 4, due to ontology 2 First end 21 is connect with guide shoe 3, and the second end of ontology 2 is connect with the first end 11 of top connection 1, so by the fishing spear tripping in When in oil-water well, the part for entering oil-water well in the fishing spear at first is guide shoe 3, and there is guide shoe 3 certain guiding to make With, can smoothly will be in the fishing spear tripping in oil-water well so under the guidance of guide shoe 3.And due to close in the side wall of ontology 2 Holding tank is provided on the position of guide shoe 3, magnetic block 4 is located in holding tank, so after in by the fishing spear tripping in oil-water well, Junk in oil-water well will be easy to be adsorbed on the fishing spear under the magneticaction of magnetic block 4.Later, the salvaging is above proposed Cone can realize the salvaging to junk, and salvaging process is simple and convenient, and it is higher to salvage efficiency.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (10)

1. a kind of fishing spear, which is characterized in that the fishing spear includes: top connection (1), ontology (2), guide shoe (3) and magnetic block (4);
The first end (21) of the ontology (2) is connect with the guide shoe (3), the second end and the top connection of the ontology (2) (1) first end (11) connection;
It is provided with holding tank on the position of the guide shoe (3) in the side wall of the ontology (2), the magnetic block (4) is located at In the holding tank, the magnetic block (4) is used for absorbent bodies.
2. fishing spear as described in claim 1, which is characterized in that the top connection (1), the ontology (2) and the guide shoe (3) it is provided with through-hole in the axial direction, and the top connection (1), the ontology (2) and the guide shoe (3) are arranged in the axial direction Through-hole connection.
3. fishing spear as described in claim 1, which is characterized in that the quantity of the holding tank is greater than or equal to 2.
4. fishing spear as claimed in claim 3, which is characterized in that the quantity of the magnetic block (4) is greater than or equal to 2, at least There is at least one magnetic block (4) in each holding tank in two holding tanks.
5. fishing spear as described in claim 1, which is characterized in that the ontology (2) includes first pipe (22) and the second pipe Road (23), the first pipe (22) include first part (221) and second part;
The first end of the first part (221) of the first pipe (22) is connect with the guide shoe (3), the first pipe (22) The second end of first part (221) connect with the first end of the second part of the first pipe (22), the first pipe (22) second end of second part is connect with the first end of the second pipe (23), the second end of the second pipe (23) It is connect with the first end of the top connection (1), the diameter of the first part (221) of the first pipe (22) and second pipe The diameter in road (23) is all larger than the diameter of the second part of the first pipe (22);
The end face of the second end of the first part (221) of the first pipe (22), the first pipe (22) second part Outer wall and the second pipe (23) first end end face between be formed with the holding tank.
6. fishing spear as claimed in claim 5, which is characterized in that
The end face of the second end of the first part (221) of the first pipe (22) and the second part of the first pipe (22) Outer wall in target site between angle be acute angle, the end face of the first end of the second pipe (23) and it is described first pipe The angle between target site in the outer wall of the second part in road (22) is right angle or acute angle, the of the first pipe (22) Target site in the outer wall of two parts is the second end and described the of the first part (221) positioned at the first pipe (22) Position between the first end of two pipelines (23);Alternatively,
The end face of the second end of the first part (221) of the first pipe (22) and the second part of the first pipe (22) Outer wall in target site between angle be right angle or acute angle, the end face of the first end of the second pipe (23) with it is described The angle between target site in the outer wall of the second part of first pipe (22) is acute angle.
7. fishing spear as described in claim 1, which is characterized in that the width of the notch of the holding tank is less than the holding tank Slot bottom width.
8. fishing spear as claimed in claim 1, which is characterized in that the guide shoe (3) is nib type guide shoe, the pen Sharp formula guide shoe has lead-in chamfered (31).
9. fishing spear as claimed in claim 8, which is characterized in that fluted (311) are arranged on the lead-in chamfered (31).
10. fishing spear as claimed in claim 1, which is characterized in that the guide shoe (3) is starting taper formula guide shoe.
CN201822192029.0U 2018-12-25 2018-12-25 Fishing spear Active CN209621249U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822192029.0U CN209621249U (en) 2018-12-25 2018-12-25 Fishing spear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822192029.0U CN209621249U (en) 2018-12-25 2018-12-25 Fishing spear

Publications (1)

Publication Number Publication Date
CN209621249U true CN209621249U (en) 2019-11-12

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Application Number Title Priority Date Filing Date
CN201822192029.0U Active CN209621249U (en) 2018-12-25 2018-12-25 Fishing spear

Country Status (1)

Country Link
CN (1) CN209621249U (en)

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