Straight-through pipe joint for hydraulic machine

Abstract

The utility model discloses a straight-through pipe joint for a hydraulic machine. The straight-through pipe joint comprises an outer hexagon, a guide plate is fixedly connected to one side of the outer hexagon, a connecting sleeve is fixedly connected to the middle of the guide plate, a mounting piece is arranged on one side of the connecting sleeve, and a positioning elastic piece is arranged on one side of the mounting piece; a reset block is arranged on one side of the positioning elastic piece, and a positioning block is arranged on one side of the reset block. Wherein the other side of the outer hexagon is fixedly connected with a threaded block, one side of the threaded block is in threaded connection with a threaded sleeve, one side of the threaded sleeve is in lap joint with a sealing block, and the other side of the threaded sleeve is provided with a limiting ring, so that connection and positioning of the threaded block and the threaded sleeve are facilitated, and sealing connection of the threaded block and the threaded sleeve on one side of the straight-through pipe joint is enhanced; and the guide plates are arranged on the two sides of the outer hexagon, so that the stability of connection between the wrench and the outer hexagon is improved, and the straight-through pipe joint is more convenient and faster to install.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic press fittings, and specifically relates to a straight pipe joint for a hydraulic press. Background Technique

[0002] A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. When installing a hydraulic press, it is often necessary to install it with the cooperation of a straight pipe joint. A straight pipe joint is a pipe fitting used for pipe connection, which realizes the straight-through connection of two pipes and is suitable for situations where two pipes need to be connected simultaneously.

[0003] The published patent No. CN216279861 discloses a new type of flared taper thread straight pipe joint, which relates to a pipe joint and aims to solve the problem that the sealing performance of the existing pipe joint becomes worse and worse during use, affecting the use. The key points of its technical solution are: including a pipe body, the pipe body includes a nut seat and connection heads one and two respectively fixedly connected to the two end heads of the nut seat. A ring block is fixedly connected to the side of the nut seat facing connection head one, and a sealing groove one is formed between the ring block and connection head one. The structure of the utility model is simple. Through sealing groove one and sealing groove two, the sealing performance between connection heads one and two of the pipe is improved, the liquid leakage in the pipe is reduced, the utilization rate of the liquid in the pipe is improved, and it is convenient to use. Through the galvanized layer, the surface of the ring block, the side wall of sealing groove one, and the side wall of the through groove all have good anti-corrosion performance, which plays a protective role for the surface of the ring block, the side wall of sealing groove one, and the side wall of the through groove. However, the following problems still exist in the actual use of this patent:

[0004] This straight pipe joint is convenient to reduce the liquid leakage in the pipe by setting a tapered connection head. However, since it is difficult to accurately judge whether the installation of the straight pipe joint is in place during use, and it is still easy to loosen during use, resulting in a poor sealing effect. And when this straight pipe joint is in use, the wrench is prone to deviation, resulting in a large installation difficulty of the straight pipe joint. Therefore, the practicability of this straight pipe joint is poor.

[0005] A straight pipe joint for a hydraulic press is proposed to solve the problems mentioned above. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a straight pipe joint for a hydraulic press, so as to solve the problem proposed in the above background technology. At present, by setting a conical connector, it is convenient to reduce the leakage of liquid in the pipe. However, when this straight pipe joint is in use, it is difficult to accurately judge whether the installation of the straight pipe joint is in place, and it is still prone to loosening during use, resulting in poor sealing effect. Moreover, when this straight pipe joint is in use, the wrench is prone to deviation, resulting in a large installation difficulty for the straight pipe joint, and thus the practicability of this straight pipe joint is poor.

[0007] To achieve the above purpose, the present utility model provides the following technical solution: A straight pipe joint for a hydraulic press, including an external hexagon.

[0008] It further includes:

[0009] One side of the external hexagon is fixedly connected with a guide plate, and the middle of the guide plate is fixedly connected with a connecting sleeve. One side of the connecting sleeve is provided with a plug-in slot, and an installation piece is inserted in the middle of the plug-in slot. One side of the installation piece is fixedly connected with an installation bolt, and the other side of the installation piece is provided with a positioning elastic piece.

[0010] Among them, one side of the positioning elastic piece is lapped with a guide block, and one side of the guide block is fixedly connected with a reset block. One side of the reset block is provided with a positioning groove, and a positioning block is slidably connected to one side of the positioning groove.

[0011] Among them, the other side of the external hexagon is fixedly connected with a threaded block, and one side of the threaded block is threadedly connected with a threaded sleeve. One side of the threaded sleeve is lapped with a sealing block, and the other side of the threaded sleeve is fixedly connected with a limiting block, and a limiting ring is sleeved on one side of the limiting block.

[0012] Preferably, the connecting sleeves are symmetrically fixedly connected to one side of the external hexagon, which is convenient for the positioning of the wrench.

[0013] Preferably, one end of the installation piece is fixedly connected with one end of the positioning elastic piece, and the end of the positioning elastic piece away from the installation piece is slidably connected to the inner side of the connecting sleeve, which is convenient for the installation and separation of the positioning elastic piece.

[0014] Preferably, the positioning block is fixedly connected to one side of the connecting sleeve, which is convenient for the positioning of the reset block.

[0015] Preferably, the outer side of the reset block is slidably connected to the inner side of the connecting sleeve, which is convenient for the limiting of the reset block.

[0016] Preferably, the sealing block is fixedly connected to one side of the external hexagon, which is convenient for enhancing the sealing performance.

[0017] Preferably, the limiting ring is engaged with the limiting block on the outer side of the threaded sleeve, which is convenient for the positioning and replacement of the limiting ring.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the straight pipe joint used in a hydraulic press, it facilitates the connection and positioning of the threaded block and the threaded sleeve, enhances the sealed connection between the threaded block on one side of the straight pipe joint and the threaded sleeve, improves the stability of the installation of the straight pipe joint, and promotes the stability of the connection between the wrench and the external hexagon by setting guide plates on both sides of the external hexagon, making the installation of the straight pipe joint more convenient and fast. Therefore, the practicality of the straight pipe joint is stronger. The specific content is as follows:

[0019] 1. By setting the installation elastic piece, reset block, sealing block, limiting block and limiting ring, the straight pipe joint realizes the connection and positioning of the threaded block and the threaded sleeve, thereby enhancing the sealing effect of the connection between the threaded block on one side of the straight pipe joint and the threaded sleeve. At the same time, it is convenient to lock the installation position, thus facilitating the stability of the straight pipe joint. Therefore, the practicality of the straight pipe joint is stronger;

[0020] 2. By setting guide plates on both sides of the external hexagon, the straight pipe joint facilitates the stability of the connection between the wrench and the external hexagon, thereby facilitating the stable installation of the straight pipe joint through the wrench, making the installation of the straight pipe joint more convenient and fast. Therefore, the practicality of the straight pipe joint is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the front cross-sectional structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 3 is of the present utility model Figure 1 is an enlarged schematic diagram of the structure at A in the present utility model;

[0024] Figure 4 is a schematic top view of the reset block structure of the present utility model;

[0025] Figure 5 is a schematic diagram of the external hexagon structure of the present utility model.

[0026] In the figure: 1, external hexagon; 2, guide plate; 3, connecting sleeve; 4, insertion slot; 5, mounting piece; 6, mounting bolt; 7, positioning elastic piece; 8, positioning block; 9, positioning slot; 10, reset block; 11, guide block; 12, threaded block; 13, sealing block; 14, threaded sleeve; 15, limiting block; 16, limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. 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.

[0028] Please refer to Figures 1-5 , the present utility model provides a technical solution: a straight pipe joint for a hydraulic press, including an external hexagon 1; further including: a guide plate 2 is fixedly connected to one side of the external hexagon 1, and a connecting sleeve 3 is fixedly connected to the middle of the guide plate 2, and a plug-in slot 4 is provided on one side of the connecting sleeve 3, and a mounting piece 5 is inserted into the middle of the plug-in slot 4, and a mounting bolt 6 is fixedly connected to one side of the mounting piece 5, and a positioning elastic piece 7 is provided on the other side of the mounting piece 5; the connecting sleeve 3 is symmetrically fixedly connected to one side of the external hexagon 1; one end of the mounting piece 5 is fixedly connected to one end of the positioning elastic piece 7, and the end of the positioning elastic piece 7 away from the mounting piece 5 is slidably connected to the inner side of the connecting sleeve 3, as Figure 1 , 2 , 3, 4, and 5 show that by setting the guide plate 2, it is convenient for the wrench to quickly engage with the external hexagon 1, thereby facilitating the quick installation of the straight pipe joint, making the installation of the straight pipe joint more convenient and fast, and by setting the positioning elastic piece 7, it is convenient to limit the position of the limiting ring 16, thereby facilitating the judgment of the installation effect of the straight pipe joint, and at the same time facilitating the enhancement of the installation stability of the straight pipe joint. Therefore, the practicality of the straight pipe joint is stronger.

[0029] Wherein, a guide block 11 is lapped on one side of the positioning elastic piece 7, and a reset block 10 is fixedly connected to one side of the guide block 11, and a positioning groove 9 is provided on one side of the reset block 10, and a positioning block 8 is slidably connected to one side of the positioning groove 9; the positioning block 8 is fixedly connected to one side of the connecting sleeve 3; the outside of the reset block 10 is slidably connected to the inner side of the connecting sleeve 3, as Figure 2 shown. By setting the positioning groove 9 and the positioning block 8 on one side of the reset block 10, it is convenient to position the reset block 10. Therefore, the practicality of the straight pipe joint is stronger.

[0030] Wherein, a threaded block 12 is fixedly connected to the other side of the external hexagon 1, and a threaded sleeve 14 is threadedly connected to one side of the threaded block 12, and a sealing block 13 is lapped on one side of the threaded sleeve 14, and a limiting block 15 is fixedly connected to the other side of the threaded sleeve 14, and a limiting ring 16 is sleeved on one side of the limiting block 15; the sealing block 13 is fixedly connected to one side of the external hexagon 1; the limiting ring 16 is engaged with the limiting block 15 on the outer side of the threaded sleeve 14, as Figure 1 , 3As shown, the setting of the limit block 15 facilitates the limitation of the position of the limit ring 16 and also facilitates the replacement of the limit ring 16. The setting of the sealing block 13 enhances the sealing performance of the straight pipe joint, making the straight pipe joint more practical.

[0031] Working principle: When using this straight pipe joint, first, the limit ring 16 is sleeved on the limit block 15 outside the threaded sleeve 14.

[0032] Secondly, the mounting piece 5 at one end of the positioning elastic piece 7 is passed through the insertion slot 4, and the mounting bolt 6 is used to fixedly connect the mounting piece 5 to the outside of the connecting sleeve 3. Then, the threaded sleeve 14 is docked with the threaded block 12, so that the threaded sleeve 14 pushes the positioning elastic piece 7 to slide inside the connecting sleeve 3 and fits with one side of the sealing block 13. At this time, the positioning elastic piece 7 resets and overlaps with one side of the limit ring 16, realizing the installation of the straight pipe joint.

[0033] Finally, by pressing the reset block 10, the reset block 10 slides on one side of the positioning block 8 through the positioning groove 9, so that the guide block 11 on one side of the reset block 10 pushes the positioning elastic piece 7 to separate from the limit ring 16. Then, a wrench can be used to engage the hexagonal socket 1 in the middle of the guide plate 2, realizing the disassembly of the straight pipe joint.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A straight pipe joint for a hydraulic press, comprising an external hexagon (1); It is characterized in that Also includes: A guide plate (2) is fixedly connected to one side of the external hexagon (1), a connecting sleeve (3) is fixedly connected to the middle of the guide plate (2), a plug-in slot (4) is provided at the beginning of one side of the connecting sleeve (3), a mounting plate (5) is plugged in the middle of the plug-in slot (4), a mounting bolt (6) is fixedly connected to one side of the mounting plate (5), and a positioning spring plate (7) is provided on the other side of the mounting plate (5); Wherein, a guide block (11) is overlapped on one side of the positioning spring sheet (7), and a reset block (10) is fixedly connected to one side of the guide block (11), and a positioning groove (9) is provided on one side of the reset block (10), and a positioning block (8) is slidably connected to one side of the positioning groove (9); The other side of the external hexagon (1) is fixedly connected to a threaded block (12), one side of the threaded block (12) is threadedly connected to a threaded sleeve (14), one side of the threaded sleeve (14) is overlapped with a sealing block (13), the other side of the threaded sleeve (14) is fixedly connected to a limiting block (15), and one side of the limiting block (15) is sleeved with a limiting ring (16).

2. A straight pipe joint for a hydraulic press according to claim 1, characterized in that: The connecting sleeve (3) is symmetrically fixedly connected to one side of the outer hexagon (1).

3. A straight pipe joint for a hydraulic press according to claim 1, characterized in that: One end of the mounting plate (5) is fixedly connected to one end of the positioning spring plate (7), and one end of the positioning spring plate (7) away from the mounting plate (5) is slidably connected to the inner side of the connecting sleeve (3).

4. A straight pipe joint for a hydraulic press according to claim 1, characterized in that: The positioning block (8) is fixedly connected to one side of the connecting sleeve (3).

5. A straight pipe joint for a hydraulic press according to claim 1, characterized in that: The outer side of the reset block (10) is slidably connected to the inner side of the connecting sleeve (3).

6. A straight pipe joint for a hydraulic press according to claim 1, characterized in that: The sealing block (13) is fixedly connected to one side of the outer hexagon (1).

7. A straight pipe joint for a hydraulic press according to claim 1, characterized in that: The limiting ring (16) is engaged with a limiting block (15) outside the threaded sleeve (14).

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