CN218177646U - Prevent multisection pole of flaring - Google Patents

Abstract

The utility model provides a prevent flared multisection pole, including first unit pole and second unit pole, first unit pole has first pipe wall, the tip suppression of first pipe wall has sunken first locking groove, the suppression has sunken external screw thread on the first locking groove, the tip suppression of second unit pole has the throat, the suppression of throat department has the internal thread, the internal thread can with the external screw-thread fit is fixed, the tip inboard of first unit pole is equipped with the second pipe wall, the second pipe wall with first locking groove is located different positions, just the second pipe wall with first locking groove the external screw thread can support jointly second unit pole. The utility model has the advantages of through setting up the second pipe wall, the intensity of the oral area of multiplicable first unit pole, when avoiding many sections pole atress, the oral area of first unit pole expands outward, breaks even, and the second pipe wall can prevent to connect and the oral area of first unit pole when using cuts the hand.

Description

Prevent multisection pole of flaring

Technical Field

The utility model relates to a member connection field, concretely relates to prevent multisection pole of flaring.

Background

The multi-section rod or the multi-section pipe is frequently used in daily life, is generally made of metal, such as steel, stainless steel and the like, can freely adjust the length of the multi-section rod in a threaded connection mode, can shorten the space for transportation and storage, is convenient to use, and is deeply loved by merchants in the field and vast consumers.

To reduce costs and make the multi-section pole lighter, typical multi-section poles are made of thinner metal, making the ends of the multi-section pole sharper, susceptible to being cut by the consumer when connected or in use, and when the multi-section pole is adapted for use in applications requiring forced use, the ends of the multi-section pole are susceptible to flaring or even splitting after being forced. Therefore, there is a need to design a multi-section bar that prevents cutting the hand and increases the strength of use.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a flaring prevention multi-section rod that solves the above problems.

In order to achieve the above object, the present invention provides a method for manufacturing a semiconductor device, comprising:

the utility model provides a prevent multisection pole of flaring, includes first unit pole and second unit pole, first unit pole has first pipe wall, the tip suppression of first pipe wall has sunken first locking groove, the suppression has sunken external screw thread on the first locking groove, the tip suppression of second unit pole has the throat, the throat suppression has the internal thread, the internal thread can with the external screw thread cooperation is fixed, makes at least part the second unit pole inserts in the first unit pole, the tip inboard of first unit pole is equipped with the second pipe wall, the second pipe wall with first locking groove is located different positions, just the second pipe wall with first locking groove the external screw thread can support jointly second unit pole. The second pipe wall is arranged on the first unit rod positioned on the outer side, so that the thickness of the end part of the first unit rod can be increased, the joint is not easy to crack when the rod body is stressed, and the mouth part of the first unit rod is more blunt after the thickness is increased, so that the hand cutting condition can be reduced; the first unit rod and the second unit rod are supported in a multi-point mode, and therefore the strength of the joint between the two unit rods can be increased.

Preferably, the second pipe wall is fixedly connected with the first unit rod;

preferably, the end of the first unit bar is crimped inwardly to form the second tube wall. The inward curling is arranged, so that the cutting edge at the opening part of the unit rod can be turned inwards, and the opening part of the unit rod is smooth.

Preferably, a distance between a crest of any thread of the external thread and the axis of the first unit rod is smaller than a distance between the inner surface of the second pipe wall and the axis of the first unit rod. The diameter of the opening of the first unit rod is reduced after the second pipe wall is arranged inwards, and if the second pipe wall is too thick, the second unit rod is easy to enter the first unit rod to be connected, and the inner thread and the outer thread are also difficult to contact and connect.

Preferably, the depth of the first locking groove is not less than the thickness of the second pipe wall.

Preferably, a reinforcing member is disposed on the first locking groove.

Preferably, a guide surface is arranged at the necking position of the second unit rod, and when the first unit rod is connected with the second unit rod, the second pipe wall is abutted against the guide surface.

Preferably, a first step and a second step are arranged at the necking part of the second unit rod, when the first unit rod is connected with the second unit rod, the first step is attached to/supported by the inner surface of the first locking groove/the first unit rod, and the second step is attached to/supported by the wall of the second pipe.

Preferably, the end of the second unit rod is also provided with a second pipe wall.

Preferably, the first unit rod and the second unit rod are made of stainless steel material, and the first tube wall thickness of the first unit rod and the second unit rod is 0.2mm-0.5mm.

Preferably, the length of the second unit rod inserted into the first unit rod is not less than 20mm.

The utility model has the advantages of: the second pipe wall is arranged, so that the strength of the opening part of the first unit rod can be increased, the condition that the opening part of the first unit rod expands outwards and even breaks when a plurality of sections of rods are stressed is avoided, and the second pipe wall can prevent the opening part of the first unit rod from cutting hands when the first unit rod is connected and used; the first unit rod and the second unit rod are supported in a multi-point mode, and therefore the strength of the joint between the two unit rods can be increased.

Drawings

Fig. 1 is an overall schematic view of the multi-section rod of the present invention.

Fig. 2 is an exploded view of a multi-section rod according to embodiment 1 of the present invention.

Fig. 3 is a first partial cross-sectional view of a multi-section rod of the present invention.

Fig. 4 is a second schematic partial sectional view of a multi-section rod of the present invention.

Fig. 5 is a third schematic partial cross-sectional view of a multi-section rod of the present invention.

Fig. 6 is a schematic view of the flaring of the first unit rod of the present invention.

Fig. 7 is an exploded view of a multi-section rod according to embodiment 2 of the present invention.

Detailed Description

The following describes the embodiments of the present invention in detail with reference to the accompanying drawings, so that how to apply the technical means to solve the technical problems and achieve the technical effects of the present invention can be fully understood and implemented.

Certain terms are used herein to refer to particular components, and those skilled in the art will understand that the description and claims do not distinguish between components by difference in name, but rather by difference in function. It should be noted that, when an element is described as being "provided with" or "disposed on" another element, it may mean that the element is directly provided or disposed on the other element or intervening elements may be present, and may be a unitary structure or a split structure, unless otherwise specified. When an element is described as being "connected" to another element, the elements may be directly connected or connected by intervening elements, integrally connected or separately connected or in touching engagement. When an element is referred to as being "on" another element, it does not mean that the element is necessarily on top of or above the other element, or in other locations. The terms "upper", "lower", "left", "right", "high", "low" and the like are used herein with reference to the normal state of the product in which it is placed, and are used for convenience of description only. The term "plurality" as used herein refers to two or more numbers. The terms "vertical," "horizontal," and the like as used herein refer to a state of being substantially vertical or substantially horizontal within reasonable error and are not necessarily precise.

Example 1

Referring to fig. 1-6, an anti-flaring multi-section rod at least comprises a first unit rod 1 and a second unit rod 2, wherein an external thread 3 is arranged at the end of the first unit rod 1, a necking 4 is pressed at the end of the second unit rod 2, an internal thread 5 is arranged at the position of the necking 4, the internal thread 5 can be matched and fixed with the external thread 3, so that at least part of the second unit rod 2 is inserted into the first unit rod 1, a second pipe wall 6 is arranged on the inner side of the end of the first unit rod 1, and the second pipe wall 6 can be attached to/contacted with at least one of the first unit rod 1 and the second unit rod 2.

In this embodiment, the multi-section rod can be understood as a hollow multi-section pipe, and the multi-section rod can be suitable for cleaning tools such as mops and besoms, and can also be used in household fields such as mosquito nets, tents and clothes hangers.

Preferably, the multi-section rod may be used after two unit rods are connected, or two or more unit rods are connected end to end, in this embodiment, the number of unit rods of the multi-section rod is not limited, and the first unit rod 1 and the second unit rod 2 in this embodiment are only described by the minimum connection unit of the multi-section rod in use, that is, the multi-section rod includes at least the first unit rod 1 and the second unit rod 2, and the end of the first unit rod 1 and the end of the second unit rod 2, which are far away from each other, are selectively connected with other unit rods.

Preferably, the multi-section rod is made of metal materials, such as steel, stainless steel and the like, in the embodiment, the multi-section rod is made of stainless steel, and the stainless steel has the advantages of high hardness, wear resistance, difficulty in rusting and high glossiness. Meanwhile, when the multi-section rod is suitable for different fields or different using modes, the multi-section rod can be made of different materials, and the wall thickness of the multi-section rod can be different. In the embodiment, the thickness of the first pipe wall 7 of the multi-section rod is 0.2mm-0.5mm, and the multi-section rod in the thickness range has the advantages of low cost and convenience in storage and transportation, and can be used by consumers in daily life.

Preferably, the first unit bar 1 and the second unit bar 2 have the same diameter and are 150mm to 400mm.

In order to increase the use strength of the multi-section rod and meet the requirement that the multi-section rod is used in a stressed state, when the multi-section rod is used as a cleaning tool such as a mop rod, a consumer generally applies a large force to the side edge of the multi-section rod so as to meet the cleaning requirement, and when the force application is large, and the stress is too large at the joint between the first unit rod 1 and the second unit rod 2, the mouth part of the first unit rod 1 is easy to expand outwards and even crack; when the multi-section rod is used as a clothes airing rod, when hung clothes or quilts are heavy, the multi-section rod also needs certain strength to meet airing requirements. The joint between each unit rod of the multi-section rod is often lower in strength, and the strength of the joint between each unit rod can be increased due to the arrangement of the second pipe wall 6.

The second pipe wall 6 extends inwards, so that the integrity of the appearance of the multi-section rod can be kept, and the conditions that the second pipe wall 6 protruding and exposed is abraded and broken in daily use and the like can be avoided. Preferably, the second pipe wall 6 can be fixed at the mouth of the first unit rod 1 and/or the second unit rod 2 by welding, glue, rivets, etc., and the second pipe wall 6 is made of metal, so that the thickness thereof can be reduced when the same supporting force is provided; the second pipe wall 6 can also be arranged in a mode of curling the mouth parts of the first unit rod 1 and/or the second unit rod 2 inwards, and after curling, the cutting edges of the mouth parts of the first unit rod 1 and/or the second unit rod 2 can be turned inwards, so that the mouth parts of the first unit rod 1 and/or the second unit rod 2 are smooth, and hand cutting can be avoided during installation.

Preferably, the thickness of the second tube wall 6 is not less than the thickness of the first tube wall 7, and the length of the second tube wall 6 is not more than 10mm. It should be noted that the thickness of the second pipe wall 6, which is generated by the production process or measurement, is slightly smaller than the thickness of the first pipe wall 7, and the protection scope of the present invention is also included.

In this embodiment, the second pipe wall 6 is arranged in a curling manner, and the length of the second pipe wall 6 is less than 5mm, so that the difficulty and cost of curling can be reduced while the use strength of the second pipe wall 6 is satisfied. And one side of the second pipe wall 6 is close to or attached to the first pipe wall 7 so as to reduce the gap between the first pipe wall 7 and the second pipe wall 6, and the second pipe wall 6 is prevented from deforming towards the gap direction under long-term use, so that a gap is generated at the joint of the first unit rod 1 and the second unit rod 2, and the first unit rod 1 and the second unit rod 2 are loosened or bent.

In this embodiment, the front-rear direction is the longitudinal direction of the first unit bar 1 and the second unit bar 2, and the inner-outer direction is the inner or outer direction of the first unit bar 1 and the second unit bar 2.

Preferably, the distance between the crest of any thread of the external thread 3 and the axis of the first unit rod 1 is smaller than the distance between the inner surface of the second pipe wall 6 and the axis of the first unit rod 1. In this embodiment, the first unit rod 1 and the second unit rod 2 are cylindrical, and the axes thereof are the central axes of the cylinders. When the second unit rod 2 is inserted into the first unit rod 1 for connection, the internal thread 5 can freely pass through the area enclosed by the second pipe wall 6 until the internal thread 5 is screwed with the external thread 3.

The distance between the bottom of any thread of the external thread 3 and the axis of the first unit rod 1 is smaller than the distance between the outer surface of the first unit rod 1 and the axis.

As shown in fig. 4 and 5, the crest of the screw thread, i.e., the screw thread, is located at the innermost position of the first unit bar 1, and the root of the screw thread, i.e., the screw thread, is located at the outermost position of the first unit bar 1.

Preferably, the throat 4 of the second unit rod 2 is provided with a guide surface 8, when the first unit rod 1 is connected with the second unit rod 2, the second pipe wall 6 abuts against the guide surface 8, and the guide surface 8 is arranged, so that the first unit rod 1 can be more tightly connected with the second unit rod 2, and a gap between the position of the throat 4 and the second pipe wall 6 is avoided.

In this embodiment, press working is carried out through the body with first unit pole 1 and second unit pole 2, makes it inwards cave in and forms external screw thread 3 and internal thread 5, and under the suppression technology, the degree of depth of internal thread 5 and external screw thread 3 has limit range, if the degree of depth of internal thread 5 and external screw thread 3 is too big, first unit pole 1 and second unit pole 2 press easily and break, if the degree of depth of internal thread 5 and external screw thread 3 is less, first unit pole 1 and second unit pole 2 can't cooperate the connection under the blockking of second pipe wall 6 easily.

Preferably, the first unit rod 1 is provided with an inward-recessed first locking groove 9, the external thread 3 is arranged on the first locking groove 9, the first locking groove 9 and the second pipe wall 6 are located at different positions, the arrangement of the first locking groove 9 can enable the external thread 3 to be integrally closer to the center of the first unit rod 1, and when the second unit rod 2 is inserted into the first unit rod 1, the connection between the internal thread 5 and the external thread 3 is tighter.

Of course, a flared opening 1-1 may also be provided at the end of the first unit rod 1, as shown in fig. 6, a second tube wall 6 is provided at the mouth of the flared opening 1-1, the first unit rod 1 is provided with an external thread 3 at the rear side of the flared opening 1-1, the external thread 3 is independent from the flared opening 1-1, and the obstruction of the second tube wall 6 to the connection between the first unit rod 1 and the second unit rod 2 is reduced by the flared opening 1-1.

Preferably, the reinforcing member 10 is disposed outside the first locking groove 9, the reinforcing member 10 can increase the strength of the position of the first locking groove 9, and the reinforcing member 10 can also extend forward and backward, so that the first unit bar 1 and the second unit bar 2 are connected and then surround the joint of the first unit bar 1 and the second unit bar 2.

Preferably, the length of the second unit bar 2 inserted into the first unit bar 1 is not less than 20mm, and the connection length between the two unit bars is prolonged, so that the support length between the two unit bars is longer, and the use is more stable.

In this embodiment, the first step 11 and the second step 12 are disposed at the necking 4 of the second unit rod 2, and when the first unit rod 1 is connected to the second unit rod 2, the first step 11 is attached to/supported by the first locking groove 9/the external thread 3/the inner surface of the first tube wall 7, and the second step 12 is attached to/supported by the second tube wall 6/the flaring. Due to the multi-point supporting arrangement, when the multi-section rod is subjected to external force, the strength of the joint of the multi-section rod is higher, and outward expansion and breakage of the first unit rod 1 are avoided.

Preferably, the second pipe wall 6 is attached to the first pipe wall 7, so that the first unit rod 1 and the second unit rod 2 are more tightly connected.

Preferably, one end of the necking 4 of the second unit bar 2 is also provided with a second pipe wall 6, and the second pipe wall 6 is positioned at a different position from the internal thread 5.

In the above embodiment, the other end of the first unit rod 1 is provided with the necking 4 and the internal thread 5, and the other end of the second unit rod 2 is provided with the external thread 3 and the second pipe wall 6, i.e. the first unit rod 1 and the second unit rod 2 have the same structure and are only connected in different directions to connect other unit rods, and meanwhile, the arrangement of the same structure of each unit rod improves the universal rate of the unit rods, and is more convenient in production and connection. In other embodiments, it may be configured that both ends of the first unit rod 1 are provided with the external threads 3, and both ends of the second unit rod 2 are provided with the internal threads 5.

In the present embodiment, the male thread 3 is a thread located on the outer side when connected, and the female thread 5 is a thread located on the inner side when connected.

Example 2

This embodiment is basically the same as embodiment 1, and the same parts are not repeated one by one, and only different parts are described, where: the connection structure of the internal thread 5 and the external thread 3.

Referring to fig. 7, in the present embodiment, the external thread 3 is provided on the first connection member 13, the first connection member 13 is fixedly installed in the first unit bar 1, the internal thread 5 is provided on the second connection member 14, and the second connection member 14 is fixedly installed on the second unit bar 2.

Specifically, first connecting piece 13 and second connecting piece 14 are made by plastics, first connecting piece 13 and second connecting piece 14 are last respectively integrated into one piece have external screw thread 3 and internal thread 5, first connecting piece 13 is equipped with third pipe wall 15, the outside and the laminating of first unit pole 1 of third pipe wall 15, the inboard is equipped with external screw thread 3, the wall thickness of third pipe wall 15 is not less than the wall thickness of second pipe wall 6, when first unit pole 1 and second unit pole 2 are connected, second pipe wall 6 laminates/supports with throat 4 of second connecting piece 14 mutually.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a prevent multisection pole of flaring, includes first unit pole and second unit pole, its characterized in that, first unit pole has first pipe wall, the tip suppression of first pipe wall has sunken first locking groove, the suppression has sunken external screw thread on the first locking groove, the tip suppression of second unit pole has the throat, the throat suppression has the internal thread, the internal thread can with the external screw thread fit is fixed, makes at least part the second unit pole inserts in the first unit pole, the tip inboard of first unit pole is equipped with the second pipe wall, the second pipe wall with first locking groove is located different positions, just the second pipe wall with first locking groove the external screw thread can support jointly second unit pole.

2. The anti-flare multi-segmented rod according to claim 1, wherein the second tube wall is fixedly connected to the first unit rod, or wherein an end of the first unit rod is curled inward to form the second tube wall.

3. The flare-resistant multi-section rod as claimed in claim 2, wherein the distance between the crest of any thread of the external thread and the axis of the first unit rod is smaller than the distance between the inner surface of the second tube wall and the axis of the first unit rod.

4. The anti-flare multi-segment rod of claim 3 wherein the depth of the first locking groove is not less than the thickness of the second tube wall.

5. The anti-flare multi-segment rod of claim 3 or 4 wherein the first locking groove is provided with a reinforcement.

6. The flaring-proof multi-section rod as claimed in claim 3 or 4, wherein a guide surface is arranged at the necking part of the second unit rod, and when the first unit rod and the second unit rod are connected, the second pipe wall is pressed against the guide surface.

7. The flaring-proof multi-section rod as claimed in claim 6, wherein a first step and a second step are arranged at the necking position of the second unit rod, when the first unit rod is connected with the second unit rod, the first step is attached to/supported by the inner surface of the first locking groove/the first unit rod, and the second step is attached to/supported by the wall of the second pipe.

8. The anti-flare multi-segmented rod according to claim 7, wherein the end of the second unit rod is also provided with a second tube wall.

9. The anti-flare multi-segmented rod according to any one of claims 1 to 4,7 to 8, wherein the first unit rod and the second unit rod are made of stainless steel material, and the first tube wall thickness of the first unit rod and the second unit rod is 0.2mm to 0.5mm.

10. The anti-flare multi-segmented rod according to claim 9, wherein the second unit rod is inserted into the first unit rod by a length of not less than 20mm.

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