Mining rubber tube broken end taking-out device
By designing a mining hose breakage removal device with a cross-shaped connector and a conical extractor, the problem of hose joint breakage caused by corrosion and seizing in underground working faces has been solved, achieving efficient and stable hose breakage removal. It is suitable for various types of hoses.
Patent Information
- Application Number
- CN202520488812.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing technologies are insufficient for efficiently removing broken hose joints caused by corrosion and seizing in underground working faces, especially in coal slurry and humid environments. Common methods are ineffective in loosening and removing broken hose ends.
A device for removing broken ends of mining hoses is designed, which uses a cross joint and a conical extractor. The broken end is loosened by striking and rotating the cross joint. The conical groove increases stability and the bearing steel material improves the connection firmness.
It enables quick and stable removal of broken hose ends, improves operational efficiency, is applicable to various types of hoses, and reduces construction difficulty and labor intensity.
Smart Images

Figure CN223947815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic system tools and equipment technology, specifically to a device for removing broken ends of mining hoses. Background Technology
[0002] The working environment in underground mines is complex and variable, especially in coal slurry and damp conditions, posing numerous challenges to the use of hydraulic hoses. Due to these environmental factors, the hose heads are easily clogged with impurities, leading to severe corrosion and seizing of the hose joints. During operation, these corroded and seized hose joints are highly susceptible to breakage from impacts or impacts from external objects, such as rockfalls during fault crossings, especially at the joints and bends.
[0003] There are currently two main solutions for removing the broken pipe head.
[0004] Option 1 uses a threaded reinforcing bolt with a diameter matching the inner wall of the hose nozzle. By forcibly cutting into the inner wall of the broken nozzle and rotating it left and right, the friction between the outer wall of the broken nozzle and the pipe seat is gradually reduced until it loosens and comes out. Option 2 uses a reverse thread extractor for a similar operation. However, both options have certain limitations in practical applications. The phenomenon of hose nozzle breakage on the working face mainly falls into two categories: nozzle breakage caused by improper installation and handling on a new working face, and nozzle breakage caused by corrosion, aging, and impact on an old working face. For the former, both options are applicable; however, for the latter, due to severe corrosion and seizing between the outer wall of the broken nozzle and the column pipe seat, and the smooth inner wall of the broken nozzle, both options are insufficient to remove the broken nozzle. Option 1 may fail to remove the broken nozzle due to insufficient seizing force, while Option 2 may fail to move the broken nozzle due to insufficient cutting force and easy stripping of the threads. Summary of the Invention
[0005] The present invention aims to solve the technical problems mentioned in the background section above by providing a device for removing broken ends of mining hoses, which can conveniently remove broken ends.
[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a mining hose breakage removal device, comprising a cross joint, a first extractor fixedly disposed at the lower end of the cross joint, a second extractor fixedly disposed at one end of the cross joint, and a third extractor fixedly disposed at the other end of the cross joint.
[0007] It also includes friction parts provided on the first extractor, second extractor and third extractor for locking the inner wall of the broken tube head.
[0008] In some embodiments, the ends of the first, second, and third extractors away from the cross joint are all tapered.
[0009] In some embodiments, the friction part is a straight groove for clamping the inner wall of the broken pipe head, the straight groove extends along the length direction of the extractor, and the opening size of the straight groove gradually decreases from the root to the top of the extractor.
[0010] In some embodiments, a connecting part for connecting a wrench is arranged on the cross joint.
[0011] In some embodiments, the connecting part is a through hole for inserting the wrench.
[0012] In some embodiments, a hanging hole is arranged at the upper end of the cross joint.
[0013] In some embodiments, the first extractor, the second extractor and the third extractor are integrally arranged with the cross joint.
[0014] In some embodiments, the first extractor, the second extractor and the third extractor and the cross joint are all forged by bearing steel.
[0015] Compared with the prior art, the utility model has the advantages that: 1, the taper plate is made in large at the top and small at the bottom, and a straight groove is arranged at the lower end of the taper plate, which increases the stability of the connection between the extractor and the inner wall of the broken pipe head. 2, the cross joint is designed, so that the operator can conveniently knock the extractor, realize fast insertion and extraction. 3, the broken pipe head is loosened by rotating the extractor, which improves the extraction efficiency. 4, the cross joint connects various models of extractors, which can be selected according to the specific model of the broken pipe head, ensuring the wide applicability of the device; the first extractor, the second extractor and the third extractor are integrally arranged with the cross joint, so that the connection is more firm, and the operation failure caused by loosening or falling off during use is avoided.
[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a front side view schematic diagram of the broken pipe head extractor device for mine rubber pipe of the utility model embodiment;
[0018] Figure 2 It is a rear side view schematic diagram of the broken pipe head extractor device for mine rubber pipe of the utility model embodiment;
[0019] In the drawings: 1, cross joint; 11, through hole; 12, hanging hole; 2, first extractor; 3, second extractor; 4, third extractor; 5, straight groove. DETAILED DESCRIPTION
[0020] The utility model will be further explained in detail as follows.
[0021] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.
[0022] In combination with Figure 1 , Figure 2 As shown in the figure, a mining rubber pipe broken head taking-out device, the taking-out device includes a cross joint, the lower end of the cross joint is fixed with a first taker, the two ends of the cross joint in the horizontal direction are respectively fixed with a second taker 3 and a third taker 4; it also includes a straight groove 5 opened on the first taker 2, the second taker 3 and the third taker 4 for clamping the inner wall of the broken pipe head.
[0023] The present application is designed by the intersection of the cross joint 1, so that the constructor can knock the taker conveniently, realize fast insertion and taking-out. At the same time, by rotating the taker to drive the broken pipe head loose, the taking-out efficiency is effectively improved.
[0024] The present application provides a variety of models of takers, the first taker 2 is suitable for M16 hydraulic rubber pipe broken pipe head, the second taker 3 is suitable for M13 hydraulic rubber pipe broken pipe head, and the third taker 4 is suitable for M10 hydraulic rubber pipe broken pipe head, which can be selected according to the specific model of the broken pipe head, ensuring the wide applicability of the device.
[0025] The integrated setting of the first taker 2, the second taker 3 and the third taker 4 by the cross joint 1 makes the connection more firm, avoiding the operation failure caused by loosening or falling off during use.
[0026] When in use, S1, select the appropriate taker according to the model of the broken pipe head;
[0027] S2, insert the selected taker into the broken pipe head, ensure that the straight groove 5 is closely combined with the inner wall of the broken pipe head, knock the intersection of the cross joint 1, and use the impact force to make the taker move to the inside of the broken pipe head; the purpose of this step is to make the taker and the broken pipe head more closely combined.
[0028] S3, rotate the cross joint 1 counterclockwise (this step can use the other taker as an extended force arm to easily drive the cross joint 1; or connect a wrench through the through hole to conveniently drive the cross joint 1 to rotate), since the taker is closely combined with the broken pipe head, this rotation will drive the broken pipe head to rotate counterclockwise in the actuator pipe joint, thereby producing loosening;
[0029] S4, knock the cross joint 1 close to the intersection of the extractor (reverse S2 knock), using the impact force to move the extractor away from the direction of the execution element pipe joint, with the movement of the extractor, the broken pipe head will be smoothly taken out, thus completing the replacement work.
[0030] The first extractor 2, the second extractor 3 and the third extractor 4 are integrally arranged with the cross joint 1. The integrated design makes the connection between the extractor and the cross joint 1 more firm, avoiding the failure of operation due to loosening or falling off during use. Since the extractor is closely connected with the cross joint 1, the operator does not need to worry about its falling off or displacement when knocking or rotating the extractor, thereby simplifying the operation steps and improving the work efficiency.
[0031] In order to facilitate the first extractor 2, the second extractor 3 and the third extractor 4 to be stably clamped inside the broken pipe head, the end of the first extractor 2, the second extractor 3 and the third extractor 4 away from the cross joint 1 is in a conical shape; and the opening size of the straight slot is designed to gradually decrease from the root to the top of the extractor.
[0032] When the extractor is knocked into the inside of the rubber pipe broken head in the S2 step, the outer part of the extractor is slightly deformed by extrusion, the straight slot is slightly contracted and clamped on the inner wall of the rubber pipe broken head; when the rubber pipe broken head is knocked out in the S4 step, because the opening of the straight slot is designed to gradually decrease from the root to the top of the extractor, the part of the rubber pipe clamped at the opening of the straight slot will expand the straight slot, so that the extractor is expanded, so that the extractor can be more closely fitted to the inner wall of the broken pipe head, thereby improving the stability of the extractor during rotation or knocking, avoiding the situation of slipping or displacement. And the support structure formed by the conical shape design enhances the connection strength between the extractor and the broken pipe head, so that the extractor can more effectively drive the broken pipe head to loosen during rotation, improving the extraction efficiency.
[0033] In order to improve the service life of the first extractor 2, the second extractor 3 and the third extractor 4: the first extractor 2, the second extractor 3 and the third extractor 4 and the cross joint 1 are all forged with bearing steel. Bearing steel has the advantages of high hardness, strong torsion, corrosion resistance, oxidation resistance, etc.
[0034] Further, in order to facilitate the cross joint 1 to be driven to rotate by using a wrench: a through hole 11 for inserting the wrench is provided on the cross joint 1. The design of the through hole 11 makes it more convenient for the operator to use the wrench to drive the cross joint 1 to rotate, thereby speeding up the extraction speed of the broken pipe head. The design of the through hole 11 can be used with wrenches of different sizes and shapes, meeting the operation requirements in different construction environments and needs. By directly inserting the wrench and rotating the cross joint 1, the operation steps are simplified, and the construction difficulty and labor intensity are reduced.
[0035] The upper end of the cross joint 1 is provided with a hanging hole 12 for hanging the device. The design of the hanging hole 12 enables the mining hose cutting device to be conveniently hung on various fixing devices in the mine operation site, saving space and facilitating ready access. The construction personnel can easily hang or take down the device through the hanging hole 12, without the need for additional handling or storage tools, thereby improving work efficiency.
[0036] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A mining hose cut removal device, characterized by: The utility model relates to a broken pipe head taking-out device, including cross joint (1), first taking-out device (2) fixedly arranged in the lower end of cross joint (1), second taking-out device (3) fixedly arranged in one end of cross joint (1) and third taking-out device (4) fixedly arranged in the other end of cross joint (1); Still include the friction part for holding the inner wall of broken pipe head is opened in first taking-out device (2), second taking-out device (3) and third taking-out device (4).
2. The mine hose sever removal device of claim 1, wherein: The first taking-out device (2), the second taking-out device (3) and the third taking-out device (4) are conical at one end away from the cross joint (1).
3. The mine hose sever removal device of claim 1, wherein: The friction part is a straight slot (5) for holding the inner wall of the broken pipe head, the straight slot (5) extends along the length direction of the taking-out device, and the opening size of the straight slot (5) gradually decreases from the root to the top of the taking-out device.
4. The mine hose sever removal device of claim 1, wherein: The cross joint (1) is provided with a connecting part for connecting a wrench.
5. A mine hose sever removal device as claimed in claim 4, characterised in that: The connecting part is a through hole (11) for inserting the wrench.
6. The mine hose sever removal device of claim 1, wherein: The upper end of the cross joint (1) is provided with a hanging hole (12).
7. The mine hose sever removal device of claim 1, wherein: The first taking-out device (2), the second taking-out device (3) and the third taking-out device (4) are integrally arranged with the cross joint (1).
8. The mine hose sever removal device of claim 1, wherein: The first taking-out device (2), the second taking-out device (3), the third taking-out device (4) and the cross joint (1) are all made of bearing steel.