Pipe threading device
By adopting a combined structure of a central flexible shaft and a wear-resistant outer bead in the wire lead, the problem of difficulty in threading existing wire leads in multi-bent and rough pipes is solved, and efficient and smooth threading in complex environments is achieved.
Patent Information
- Application Number
- CN202421143099.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-23
AI Technical Summary
When existing leads penetrate pipes with multiple bent and rough inner walls, they are prone to problems such as difficulty or inability to thread, resulting in the need to use lubricant to improve threading effect.
A pipe lead is designed, which adopts a combined structure of a central flexible shaft and a wear-resistant outer bead. The central flexible shaft is composed of reinforced steel wire, an outer winding layer, an inner winding steel wire core and an inner winding layer. The wear-resistant outer bead is fixed in the center. On flexible shafts, the outer surface is curved to reduce friction.
This pipe threading guide can effectively reduce the resistance during the threading process and achieve smooth threading in complex pipeline environments. It has the advantages of low friction, good passability, high tensile strength, and can be bent and carried.
Smart Images
Figure CN222381208U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lead-in wire structures, and in particular relates to a pipe threading wire guide. Background Art
[0002] When cables or cords are inserted into pipes, a wire guide is often required. Existing wire guides often directly use steel strands. However, in actual use, some pipes often have many bends and rough inner walls. For this reason, in some wire threading scenarios, rapeseed oil, motor oil, detergent and other lubricants are used to apply lubricants to the surface of the pipe guide and cable before threading. This method often has a better effect. When the pipe has more bends, it is easy to be unable to thread the wire. Utility Model Content
[0003] In order to solve the above problems existing in the prior art, the present invention provides a pipe threading guide.
[0004] The technical solution adopted by the utility model is:
[0005] A pipe threading and wire guide comprises a central flexible shaft, a wear-resistant outer shell bead and a wire hanging head; a plurality of wear-resistant outer shell beads are fixedly sleeved on the central flexible shaft; the wire hanging head is fixedly connected to the end of the central flexible shaft and is used for connecting cables or cords;
[0006] The central flexible shaft comprises a reinforcing steel wire, an outer winding layer, an inner winding steel wire core and an inner winding layer; the inner winding layer is wound around the outer side of the inner winding steel wire core and is spirally wound around the reinforcing steel wire; the outer winding layer is wound around the outer side of the reinforcing steel wire and the inner winding steel wire core; an uneven structure is formed on the outer side of the central flexible shaft.
[0007] As an alternative or supplement to the above-mentioned pipe threading guide: the winding spiral direction of the inner winding layer outside the inner winding wire core is left-handed or right-handed, the pitch is 0.1mm to 100mm, and the overall diameter after winding is 0.1mm to 100mm.
[0008] As an alternative or supplement to the above-mentioned tube threading guide: the spiral direction of the outer winding layer is left-handed or right-handed, and the outer winding wire is twisted and wound in a set order and quantity to form an outer winding layer; the pitch of the outer winding layer is 0.1mm to 100mm, and the overall diameter is 0.1mm to 100mm.
[0009] As an alternative or supplement to the above-mentioned pipe threading guide: an adhesion layer is arranged outside the section of the central flexible shaft not connected to the wear-resistant outer cover bead; the adhesion layer is made of copper, iron, steel, aluminum, zinc, plastic, rubber, nylon or glass fiber material.
[0010] As an alternative or supplement to the above-mentioned tube threading guide: the wire hanging head is detachably arranged at the end of the central flexible shaft.
[0011] As an alternative or supplement to the above-mentioned pipe threading guide: the outer surface of the wear-resistant outer shell bead is a curved surface.
[0012] As an alternative or supplement to the above-mentioned pipe threading guide: the number of the reinforced steel wire, the inner winding wire core and the inner winding layer of the central flexible shaft is one or more.
[0013] As an alternative or supplement to the above-mentioned pipe threading guide: the wire hanging head is connected to the central flexible shaft in a sleeve connection and buckled and fixed manner, or the wire hanging head is connected to the central flexible shaft in a welding connection manner.
[0014] As an alternative or supplement to the above-mentioned pipe threading guide: a connecting sleeve is provided at the end of the central flexible shaft, and the connecting sleeve is connected to the hanging wire head through a guide rope; the connecting sleeve is connected to the central flexible shaft and the guide rope by a sleeve connection and buckled fixing method, and the hanging wire head is connected to the guide rope by a welding connection method.
[0015] As an alternative or supplement to the above-mentioned pipe threading guide: the guide rope is made of copper, iron, steel, aluminum, zinc, plastic, rubber, nylon or glass fiber.
[0016] The beneficial effects of the utility model are as follows: due to the structure of the wear-resistant outer shell bead in this solution, the resistance during the threading process can be effectively reduced, and the threading operation can be realized in a complex pipeline environment. In addition, the pipe threading guide in this solution has the advantages of low friction, good passability, high tensile strength, and the ability to be bent and carried. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below.
[0018] Figure 1 The figure is a cross-sectional structural diagram of a tube threading guide;
[0019] Figure 2 It is a cross-sectional structural diagram of another kind of tube threading guide;
[0020] Figure 3 (a)-(d) are schematic diagrams of the forming process of the central flexible shaft;
[0021] Figure 4 It is a schematic diagram of the structure of the pipe threading guide of different shapes;
[0022] Figure 5 yes Figure 2 The usage status diagram of the pipe threading guide;
[0023] Figure 6 yes Figure 3 Dimensioning drawing in (a);
[0024] Figure 7 yes Figure 3 Dimensioning diagram in (b);
[0025] Figure 8 yes Figure 3 Dimensioning diagram in (c);
[0026] Fig. 9 yes Figure 3 Dimensioning diagram in (d).
[0027] In the figure: 1-wear-resistant outer shell bead; 2-reinforced steel wire; 3-outer winding layer; 4-inner winding steel wire core; 5-inner winding layer; 6-hanging wire head; 7-connecting sleeve; 8-guide rope; 9-wire tube; 10-cable. DETAILED DESCRIPTION
[0028] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only some of the embodiments, not all of them. Based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of this solution.
[0029] Example 1
[0030] like Figures 1 to 9 As shown, this embodiment designs a tube threading guide, including a central flexible shaft, a wear-resistant outer shell bead 1, a hanging wire head 6 and other components.
[0031] The central flexible shaft includes structures such as a reinforcing steel wire 2, an outer winding layer 3, an inner winding steel wire core 4 and an inner winding layer 5.
[0032] The inner winding layer 5 is wound around the inner winding steel wire core 4 and is spirally wound with the reinforcing steel wire 2; the outer winding layer 3 is wound around the outer sides of the reinforcing steel wire 2 and the inner winding steel wire core 4; the outer side of the central flexible shaft is formed with an uneven structure. The inner winding layer 5 can be wound in a left-handed or right-handed spiral direction outside the inner winding steel wire core 4, with a pitch of 0.1mm to 100mm, and an overall diameter of 0.1mm to 100mm after winding. The outer winding layer 3 can be wound in a left-handed or right-handed spiral direction, and the outer winding wire is twisted and wound according to a set order and quantity to form an outer winding layer 3; the pitch of the outer winding layer 3 is 0.1mm to 100mm, and the overall diameter is 0.1mm to 100mm.
[0033] An adhesive layer is arranged outside the section L7 of the central flexible shaft which is not connected to the wear-resistant outer cover bead 1; the adhesive layer is made of copper, iron, steel, aluminum, zinc, plastic, rubber, nylon or glass fiber material.
[0034] The number of the reinforced steel wire 2, the inner winding steel wire core 4 and the inner winding layer 5 of the central flexible shaft is one or more, and the number of the reinforced steel wire 2, the outer winding layer 3, the inner winding steel wire core 4 and the inner winding layer 5 of the central flexible shaft can be changed during production according to the diameter of the wire tube 9 and other needs.
[0035] A plurality of wear-resistant outer shell beads 1 are fixedly sleeved on the central flexible shaft; the wear-resistant outer shell beads 1 can be spherical with a central hole, ellipsoidal with a central hole, oblate with a central hole, etc., so as to ensure that the outer surface of the wear-resistant outer shell beads 1 is a curved surface, so as to ensure the contact area between the wear-resistant outer shell beads 1 and the inner wall of the wire tube 9, thereby achieving the effect of reducing friction. In addition, the curved surface of the wear-resistant outer shell beads 1 can also achieve a smooth transition at the corner of the wire tube 9.
[0036] The hanging wire head 6 is fixedly connected to the end of the central flexible shaft, and the hanging wire head 6 can be set to the end of the central flexible shaft in a detachable connection mode. And it is used for the connection of the cable 10 or the wire rope; the hanging wire head 6 can be directly connected to the central flexible shaft. In this connection mode, the hanging wire head 6 is connected to the central flexible shaft in a sleeve connection and buckling fixed mode, or the hanging wire head 6 is connected to the central flexible shaft in a welding connection mode. The hanging wire head 6 can also be connected to the central flexible shaft through a connecting sleeve 7 and a guide rope 8. In this connection mode, a connecting sleeve 7 is provided at the end of the central flexible shaft, and the connecting sleeve 7 is connected to the hanging wire head 6 through the guide rope 8; the connecting sleeve 7 is connected to the central flexible shaft and the guide rope 8 in a sleeve connection and buckling fixed mode, and the hanging wire head 6 is connected to the guide rope 8 in a welding connection mode. The material of the guide rope 8 can be copper, iron, steel, aluminum, zinc, plastic, rubber, nylon or glass fiber.
[0037] The specific method of using the tube threading guide in this scheme is as follows:
[0038] S1: Determine the wire tube 9 to be threaded, such as Figure 5 As shown in (a);
[0039] S2: Insert the threading guide into the wire tube 9, as shown in FIG. Figure 5 As shown in (b);
[0040] S3: The cable 10 or the cord is fixedly connected to the hanging wire head 6, such as Figure 5 As shown in (c);
[0041] S4: Pull the threading guide to pull the cable 10 or wire rope into the wire tube 9, such as Figure 5 As shown in (d).
[0042] The specific dimensions of the tube threading guide are: the length of the central flexible shaft is L1; the total length of the tube threading guide is L2; the distance between the end of the central flexible shaft away from the hanging wire head 6 and the nearest wear-resistant outer jacket bead 1 is L3; the distance between two adjacent wear-resistant outer jacket beads 1 is L4; the spacing between two adjacent wear-resistant outer jacket beads 1 is L5; the spacing between two adjacent wear-resistant outer jacket beads 1 is L5; the length or diameter of the wear-resistant outer jacket bead 1 is L6; the distance between the hanging joint or connecting sleeve 7 and the nearest wear-resistant outer jacket bead 1 is L7; the diameter of the central flexible shaft is L8; the maximum cross-sectional diameter of the wear-resistant outer jacket bead 1 is L9; the length of the guide rope 8 is L10.
[0043] The minimum value of L1-L10 is 0.1 mm, the maximum value of L1–L3 is 50 mm, and the maximum values of L3, L4, L5, L6, and L8 are 100 mm.
[0044] The above embodiments are merely examples for the purpose of clarifying the description, and are not intended to limit the implementation methods; it is not necessary and impossible to list all implementation methods exhaustively. However, obvious changes or modifications derived therefrom are still within the scope of protection of the present technology.
Claims
1. A pipe threading guide, characterized in that: It comprises a central flexible shaft, a wear-resistant outer shell bead (1) and a hanging wire head (6); a plurality of wear-resistant outer shell beads (1) are fixedly sleeved on the central flexible shaft; the hanging wire head (6) is fixedly connected to the end of the central flexible shaft and is used for connecting cables (10) or cords; The central flexible shaft comprises a reinforcing steel wire (2), an outer winding layer (3), an inner winding steel wire core (4) and an inner winding layer (5); the inner winding layer (5) is wound around the outer side of the inner winding steel wire core (4) and is spirally wound with the reinforcing steel wire (2); the outer winding layer (3) is wound around the outer side of the reinforcing steel wire (2) and the inner winding steel wire core (4); and an uneven structure is formed on the outer side of the central flexible shaft.
2. The tube threading guide according to claim 1, characterized in that: The inner winding layer (5) is wound around the inner winding steel wire core (4) in a left-hand or right-hand spiral direction, with a pitch of 0.1 mm to 100 mm, and an overall diameter of 0.1 mm to 100 mm after winding.
3. The tube threading guide according to claim 1, characterized in that: The spiral direction of the outer winding layer (3) is left-handed or right-handed, and the outer winding wire is twisted in a set order and quantity to form the outer winding layer (3); the pitch of the outer winding layer (3) is 0.1mm to 100mm, and the overall diameter is 0.1mm to 100mm.
4. The tube threading guide according to claim 1, characterized in that: An adhesive layer is arranged outside the section of the central flexible shaft that is not connected to the wear-resistant outer shell bead (1); the adhesive layer is made of copper, iron, steel, aluminum, zinc, plastic, rubber, nylon or glass fiber material.
5. The tube threading guide according to claim 1, characterized in that: The wire hanging head (6) is detachably arranged at the end of the central flexible shaft.
6. The tube threading guide according to claim 1, characterized in that: The outer surface of the wear-resistant outer shell bead (1) is a curved surface.
7. The tube threading guide according to claim 1, characterized in that: The number of the reinforcing steel wire (2), the inner winding steel wire core (4) and the inner winding layer (5) of the central flexible shaft is one or more.
8. The tube threading guide according to any one of claims 1 to 7, characterized in that: The wire hanging head (6) is connected to the central flexible shaft in a sleeve connection and buckling and fixing manner, or the wire hanging head (6) is connected to the central flexible shaft in a welding connection manner.
9. The tube threading guide according to any one of claims 1 to 7, characterized in that: A connecting sleeve (7) is provided at the end of the central flexible shaft, and the connecting sleeve (7) is connected to the hanging wire head (6) through a guide rope (8); the connecting sleeve (7) is connected to the central flexible shaft and the guide rope (8) in a sleeve connection and buckling and fixing manner, and the hanging wire head (6) is connected to the guide rope (8) in a welding connection manner.
10. The tube threading guide according to claim 9, characterized in that: The guide rope (8) is made of copper, iron, steel, aluminum, zinc, plastic, rubber, nylon or glass fiber.