Wear-resistant pipe connecting device

Abstract

The utility model discloses a wear-resistant pipe connecting device which comprises a left connecting flange and a right connecting flange, an inner conical pipe with a conical interior is arranged on the side edge of the left connecting flange, more than one conical sleeve I is sleeved in the inner conical pipe, each conical sleeve I is provided with a mounting through hole I, and the mounting through hole I is communicated with the inner conical pipe. The diameters of the first installation through holes in the first conical sleeves are different, when one first conical sleeve is inserted into the inner conical pipe, the circle center of the first installation through hole in the first conical sleeve and the circle center of the round hole of the left connecting flange are located on the same straight line, and more than one first flange hole is annularly formed in the left connecting flange. More than one second flange hole is annularly formed in the right connecting flange, and the flange holes in the left connecting flange and the right connecting flange are symmetrically formed in sequence and are locked through matching of screws and nuts. Through the arrangement of the structure, wear-resistant pipes with different diameters can be connected, and the applicability of the structure is improved.

Description

Technical Field

[0001] The utility model belongs to the related technical field of wear-resistant pipe connection structures, and particularly relates to a wear-resistant pipe connection device. Background Technique

[0002] Wear-resistant pipe transportation has spread to industries such as electric power, metallurgy, coal, petroleum, chemical industry, building materials, and machinery, and is developing rapidly; the shell of the steel-plastic composite wear-resistant pipe uses seamless steel pipes for fluids, with high-quality polyethylene materials lined inside. It has both the strength of metal and the characteristics of corrosion resistance, high and low temperature resistance, negative pressure resistance, and anti-aging. Considering the material problems of such wear-resistant pipes (please refer to the Chinese utility model patent "Steel-plastic composite wear-resistant pipe" (publication number CN2771611Y)), its structure is different from that of steel pipes. Steel pipes can be welded. When the length is insufficient, the length can be increased by welding. However, once a wear-resistant pipe is cut off, it cannot be directly used. It is necessary to additionally configure a connector to weld two cut-off wear-resistant pipes together. Therefore, there is a wear-resistant pipe connection joint. The existing wear-resistant pipe connection joint is also called a connection device. The existing connection device generally includes a rubber joint with a set inner diameter, which is fixed by cooperating with an outer flange and screws. This connection device can only be used for wear-resistant pipes of the same type of diameter and cannot be used for wear-resistant pipes of different diameters. Therefore, it has poor versatility and inflexible use, so it needs to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a wear-resistant pipe connection device, which solves the problem that the existing connection device can only be used for wear-resistant pipes of the same type of diameter and cannot be used for wear-resistant pipes of different diameters, resulting in poor versatility and inflexible use.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a wear-resistant pipe connection device, including a left connection flange and a right connection flange. An inner conical pipe with a conical shape inside is arranged on the side of the left connection flange. One or more conical sleeves I are sleeved inside the inner conical pipe. Each conical sleeve I is provided with an installation through hole I. The diameters of the installation through holes I on each conical sleeve I are different. When one of the conical sleeves I is inserted into the inner conical pipe, the center of the installation through hole I in this conical sleeve I and the center of the round hole of the left connection flange are on the same straight line. One or more flange holes I are annularly arranged on the left connection flange, and one or more flange holes II are annularly arranged on the right connection flange. The flange holes on the left connection flange and the right connection flange are symmetrically arranged in sequence and are locked by screws cooperating with nuts.

[0006] Preferably, in order to improve the sealing performance, an anti-slip groove I is provided in the round hole of the left connecting flange, an anti-slip groove II is provided in each of the round holes of the right connecting flange, and a sealing ring is provided in each of the anti-slip groove I and the anti-slip groove II. The inner ring of the sealing ring abuts against the outer ring of the wear-resistant pipe.

[0007] Preferably, to further improve the connection effect, the right connecting flange is replaced with the left connecting flange, and a lifting sleeve is provided between the two left connecting flanges. A double-joint sleeve is inserted into the lifting sleeve. A conical sleeve II is provided at each end of the double-joint sleeve, and the conical sleeve II is respectively inserted into the corresponding inner conical pipe.

[0008] Preferably, in order to have a frictional force with the wear-resistant pipe during installation and further improve the fixing effect on the wear-resistant pipe, a damping layer made of silicone material is provided on the inner wall of the installation through hole I.

[0009] Preferably, to further increase the frictional force, the damping layer includes more than one interconnected trapezoidal part.

[0010] Preferably, a trapezoidal step is provided in each of the round holes of the left connecting flange and the right connecting flange, and the trapezoidal step is close to the entrance of the round hole.

[0011] Preferably, to improve the fixing effect, a positioning groove is provided on the outer end face of the inner conical pipe, and a positioning ring that is snapped into the positioning groove is provided on the side of the right connecting flange.

[0012] Preferably, the maximum diameter of the installation through hole I in the conical sleeve I is equal to the diameter of the round hole in the left connecting flange.

[0013] The utility model has the following beneficial effects: This structure can select the conical sleeve I with different installation diameters according to needs and cooperate with the left connecting flange and the right connecting flange to achieve the versatility and flexibility of this connecting device, which is convenient to use and saves costs. Description of the Drawings

[0014] Figure 1 It is a combined structural schematic diagram of a wear-resistant pipe connecting device in Embodiment 1 without the installation of the conical sleeve I;

[0015] Figure 2 It is a structural schematic diagram of a conical sleeve I in Embodiment 1;

[0016] Figure 3 It is another structural schematic diagram of a conical sleeve I in Embodiment 1

[0017] Figure 4 It is another structural schematic diagram of a conical sleeve I in Embodiment 1;

[0018] Figure 5 It is a schematic diagram of the combined structure of a wear-resistant pipe connection device in Embodiment 2 when the first tapered sleeve is not installed;

[0019] Figure 6 It is a schematic diagram of the combined structure of a wear-resistant pipe connection device in Embodiment 3;

[0020] Figure 7 It is a schematic diagram of the structure of the first tapered sleeve in Embodiment 4;

[0021] Figure 8 It is a schematic diagram of the combined structure of a wear-resistant pipe connection device in Embodiment 5 when the first tapered sleeve is not installed;

[0022] Figure 9 It is a schematic diagram of the combined structure of a wear-resistant pipe connection device in Embodiment 6 when the first tapered sleeve is not installed.

[0023] Reference numerals:

[0024] Left connecting flange 1, right connecting flange 2, inner tapered pipe 3, first tapered sleeve 4, first installation through hole 401, first flange hole 5, second flange hole 6, first anti-slip groove 7, second anti-slip groove 8, sealing ring 9, ascending sleeve 10, double-joint sleeve 11, damping layer 12, trapezoidal part 121, second tapered sleeve 13, trapezoidal step 14, positioning groove 15, positioning ring 16. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0026] Please refer to Figures 1-7As shown in the figure, a wear-resistant pipe connection device disclosed in this embodiment includes a left connection flange 1 and a right connection flange 2. On the side of the left connection flange 1, there is an inner conical pipe 3 with a conical shape inside. Inside the inner conical pipe 3, there is one or more conical sleeves 4 sleeved. Each conical sleeve 4 is provided with an installation through-hole 401. The diameters of the installation through-holes 401 on each conical sleeve 4 are different. When one of the conical sleeves 4 is inserted into the inner conical pipe 3, the center of the installation through-hole 401 in this conical sleeve 4 and the center of the round hole of the left connection flange 1 are on the same straight line. The left connection flange 1 is annularly provided with one or more flange holes 5, and the right connection flange 2 is annularly provided with one or more flange holes 6. The flange holes on the left connection flange 1 and the right connection flange 2 are symmetrically arranged in sequence and are locked by screws 17 and nuts 18 in cooperation.

[0027] Preferably, the maximum diameter of the installation through-hole 401 in the conical sleeve 4 is equal to the diameter of the round hole in the left connection flange 1.

[0028] The above structural setting is achieved by providing a left connection flange 1 and a right connection flange 2, and on the side of the left connection flange 1, there is an inner conical pipe 3 with a conical shape inside. Inside the inner conical pipe 3, there is a conical sleeve 4 that rotates and matches according to the outer diameter of the wear-resistant pipe. During assembly, one wear-resistant pipe is inserted into half of the conical sleeve 4, and the other wear-resistant pipe is inserted into the other half inside the conical sleeve 4, and the end faces of the two wear-resistant pipes are abutted against each other. Finally, each component is assembled together by using screws and nuts in cooperation to connect the two broken and separated wear-resistant pipes together. Therefore, this structure can select conical sleeves 4 with different installation diameters according to needs and cooperate with the left connection flange 1 and the right connection flange 2 to achieve the versatility, flexibility, convenient use, and cost savings of this connection device. Embodiment 2

[0029] Please refer to Figure 5 As shown in the figure, the general structure of a wear-resistant pipe connection device disclosed in this embodiment is the same as that of Embodiment 1. The difference is that, preferably, in order to improve the sealing performance, there is an anti-slip groove 7 in the round hole of the left connection flange 1, and an anti-slip groove 8 is provided in the round hole of the right connection flange 2. A sealing ring 9 is provided in both the anti-slip groove 7 and the anti-slip groove 8. The inner ring of the sealing ring 9 abuts against the outer ring of the wear-resistant pipe. By adding the sealing ring 9, the connection performance is further improved while the sealing effect is also improved. Moreover, the diameter of the sealing ring 9 rotates according to the diameter of the finally installed wear-resistant pipe. In the above structure, by adding the sealing ring 9 in the anti-slip groove 7 and the anti-slip groove 8, the sealing performance after connecting the two broken and separated wear-resistant pipes is improved. Embodiment 3

[0030] Please refer toFigure 6 As shown, the general structure of a wear-resistant pipe connection device disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, preferably, to further improve the connection effect, the right connection flange 2 is replaced with the left connection flange 1, and a lifting sleeve 10 is provided between the two left connection flanges 1. A double-joint sleeve 11 is inserted into the lifting sleeve 10. Conical sleeves II 13 are provided at both ends of the double-joint sleeve 11, and the conical sleeves II 13 are respectively inserted into the corresponding inner conical pipes 3. In this embodiment, to increase the range of the connection surface, by adding left connection flanges 1 arranged in mirror image at both ends, a lifting sleeve 10 is provided between the two left connection flanges 1, and a double-joint sleeve 11 for sleeving outside the wear-resistant pipe is inserted into the lifting sleeve 10. Conical sleeves II 13 inserted into the corresponding inner conical pipes 3 are provided at both ends of the double-joint sleeve 11. Finally, each component is assembled together by the cooperation of screws and nuts to connect two broken and separated wear-resistant pipes. When assembling, one wear-resistant pipe is inserted into the conical sleeve II 13, and the other wear-resistant pipe is inserted into the other conical sleeve II 13, and the end faces of the two wear-resistant pipes are abutted against each other. In this embodiment, the conical sleeve I 4 can also be omitted. Embodiment 4

[0031] Please refer to Figure 7 As shown, the general structure of a wear-resistant pipe connection device disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, preferably, in order to have a frictional force with the wear-resistant pipe during installation and further improve the fixing effect on the wear-resistant pipe, a damping layer 12 made of silica gel material is provided on the inner wall of the installation through-hole I 401.

[0032] Preferably, to further increase the frictional force, the damping layer 12 includes more than one interconnected trapezoidal part 121. By the above structural arrangement, the damping layer 12 is provided inside the installation through-hole I 401 to increase the frictional force with the outer wall of the wear-resistant pipe, thereby further improving the fixing effect on the wear-resistant pipe. Embodiment 5

[0033] Please refer to Figure 8 As shown, the general structure of a wear-resistant pipe connection device disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, preferably, a trapezoidal step 14 is provided in the round hole of the left connection flange 1 and the round hole of the right connection flange 2, and the trapezoidal step 14 is close to the entrance of the round hole. By the above structural arrangement, when two wear-resistant pipes are respectively inserted into the left connection flange 1 and the right connection flange 2, the connection property can be further improved by pouring sealing glue at the trapezoidal step 14. Embodiment 6

[0034] Please refer to Figure 9As shown in the figure, the general structure of a wear-resistant pipe connection device disclosed in this embodiment is the same as that in Embodiment 1. The difference is that, preferably, to improve the fixing effect, a positioning groove 15 is provided on the outer end surface of the inner conical pipe 3, and a positioning ring 16 that is inserted into the positioning groove 15 is provided on the side of the right connecting flange 2. Through the above structural arrangement, when the inner conical pipe 3 is fitted with the right connecting flange 2, the connection strength at the joint of the left connecting flange 1 and the right connecting flange 2 is further improved by the insertion of the positioning groove 15 and the positioning ring 16.

[0035] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made shall fall within the protection scope of the present invention.

Claims

1. A wear-resistant pipe connection device, comprising a left connection flange (1) and a right connection flange (2), characterized in that: An inner conical tube (3) with a conical interior is arranged on the side of the left connecting flange (1), and more than one conical sleeve (4) is sleeved in the inner conical tube (3), and each conical sleeve (4) is provided with a mounting through hole (401). The diameter of the mounting through hole (401) on each conical sleeve (4) is different, and when one of the conical sleeves (4) is inserted into the inner conical tube (3), the center of the mounting through hole (401) in the conical sleeve (4) is on the same straight line as the center of the circular hole of the left connecting flange (1), and more than one flange hole (5) is annularly arranged on the left connecting flange (1), and more than one flange hole (2) is annularly arranged on the right connecting flange (2), and the flange holes on the left connecting flange (1) and the right connecting flange (2) are symmetrically arranged in sequence and locked by screws and nuts.

2. A wear-resistant pipe connection device according to claim 1, characterized in that: An anti-skid groove 1 (7) is provided in the circular hole of the left connecting flange (1), and an anti-skid groove 2 (8) is provided in the circular hole of the right connecting flange (2). A sealing ring (9) is provided in each of the anti-skid groove 1 (7) and the anti-skid groove 2 (8), and the inner ring of the sealing ring (9) abuts against the outer ring of the wear-resistant tube.

3. A wear-resistant pipe connection device according to claim 1, characterized in that: The right connecting flange (2) is replaced by the left connecting flange (1), and a lifting sleeve (10) is provided between the two left connecting flanges (1), a double joint sleeve (11) is inserted into the lifting sleeve (10), and a conical sleeve (13) is provided at both ends of the double joint sleeve (11), and the conical sleeve (13) is respectively inserted into the corresponding inner conical tube (3).

4. A wear-resistant pipe connection device according to claim 1, characterized in that: The inner wall of the first mounting through hole (401) is provided with a damping layer (12) made of silicone material.

5. A wear-resistant pipe connection device according to claim 4, characterized in that: The damping layer (12) comprises more than one mutually connected trapezoidal portions (121).

6. A wear-resistant pipe connection device according to claim 1, characterized in that: A trapezoidal step (14) is provided in each of the circular holes of the left connecting flange (1) and the right connecting flange (2), and the trapezoidal step (14) is close to the entrance of the circular hole.

7. A wear-resistant pipe connection device according to claim 1, characterized in that: A positioning groove (15) is provided on the outer end surface of the inner conical tube (3), and a positioning ring (16) which is inserted into the positioning groove (15) is provided on the side of the right connecting flange (2).

8. The wear-resistant pipe connection device according to claim 1, characterized in that: The maximum diameter of the mounting through hole 1 (401) in the conical sleeve 1 (4) is equal to the diameter of the circular hole in the left connecting flange (1).

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