Threaded joint assembly special for steel wire woven hydraulic rubber pipe

Abstract

The utility model relates to the technical field of hydraulic rubber pipe fittings, and discloses a special screwed joint assembly for a steel wire braided hydraulic rubber pipe, which comprises a connecting pipe, the outer surface of the connecting pipe is fixedly connected with a replacement mechanism, the outer surface of the replacement mechanism is sleeved with a limiting mechanism, and a screwed pipe is arranged in the replacement mechanism. According to the special threaded connector assembly for the steel wire woven hydraulic rubber pipe, by arranging the replacement mechanism, in the using process, when a threaded pipe needs to be replaced, pressing blocks on the two sides are pressed towards the middle, two sliding blocks move towards the middle, the sides, away from each other, of clamping blocks on the two sides are ejected out of corresponding clamping grooves through ejection blocks, and at the moment, the threaded pipe can be pulled out; by arranging a thread replaceable structure in the threaded connector, operation is convenient, a threaded pipe in the threaded connector can be rapidly disassembled and assembled, the situation that the air tightness of the threaded connector is affected due to thread slipping when the threaded connector is used is avoided, the service life of the threaded connector is prolonged, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic hose fittings, in particular to a special threaded joint assembly for a steel wire braided hydraulic hose. Background Art

[0002] Hydraulic hoses are also known as hydraulic oil hoses, hydraulic hoses, high-pressure hoses, hydraulic pipes, steel wire high-pressure hoses, wire braided hoses, and wire spiral hoses. They are generally divided into wire braided hydraulic hoses and wire spiral hydraulic hoses. Hydraulic hoses are mainly composed of a liquid-resistant inner rubber layer, a middle rubber layer, 2, 4, or 6 layers of steel wire spiral reinforcement layers, and an outer rubber layer. The inner rubber layer allows the conveying medium to withstand pressure and protects the steel wire from corrosion. The outer rubber layer protects the steel wire from damage, and the steel wire layer serves as a skeleton material for reinforcement. Threaded connection components are required when connecting hydraulic hoses.

[0003] The national patent website discloses a threaded joint assembly for steel wire braided hydraulic hoses, with the publication number CN215410722U. The threaded joint assembly is merely reinforced to prevent deformation during use. However, after long-term use, the threads inside the threaded joint assembly are easily damaged, and thread slippage is likely to occur during use of the threaded joint, thereby affecting the tightness of the threaded joint connection. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that the threads inside the threaded joint assembly are easily damaged and thread slippage occurs easily when the threaded joint is used, and proposes a threaded joint assembly specifically for steel wire braided hydraulic hoses.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a special threaded joint assembly for steel wire braided hydraulic hose, including a connecting pipe, a replacement mechanism is fixedly connected to the outer surface of the connecting pipe, a limiting mechanism is sleeved on the outer surface of the replacement mechanism, and a threaded pipe is arranged inside the replacement mechanism.

[0006] The replacement mechanism includes a fixed tube, which is fixedly connected to the outer surface of the connecting tube, a slot is provided at the top of the fixed tube, a first spring is fixedly connected to the top of the slot, a slider is fixedly connected to the bottom of the first spring, a top block is fixedly connected to the bottom of the slider, a fixed rod is fixedly connected to the top of the slider, a through hole is provided at the top of the slot, the top of the fixed rod passes through the through hole and extends to the outside of the fixed tube, a pressing block is fixedly connected to the top of the fixed rod, a movable groove is provided at the top of the threaded tube, and a second spring is fixedly connected to the bottom of the movable groove.

[0007] Preferably, a movable plate is fixedly connected to the top of the second spring, a clamping block is fixedly connected to the top of the movable plate, and the clamping block and the clamping groove limit the fixed tube.

[0008] Preferably, the left side of the clamping block is set as an inclined surface, and the movable plate is slidably connected to the inner side of the movable groove. The inclined surface is set to facilitate the clamping block to enter the clamping groove and facilitate the threaded tube to enter the fixed tube.

[0009] Preferably, the pressing block is shaped as an arc, the top block is shaped as an arc, the first spring is sleeved on the outer surface of the fixing rod, and the arc shape makes it easy to press the pressing block.

[0010] Preferably, the limiting mechanism includes a limiting ring, which is sleeved on the outer surface of the fixed tube. A groove is provided on the right side of the limiting ring, and a connecting groove is provided at the bottom inner of the groove. The bottom inner of the connecting groove is connected to the inner side of the limiting ring.

[0011] Preferably, a connecting block is fixedly connected to the left side of the limiting ring, a screw hole is provided on the top of the connecting block, a fixing screw is threadedly connected to the inner side of the screw hole, the bottom end of the fixing screw passes through the connecting block and extends into the interior of the fixed tube, and the fixing screw limits the limiting ring, thereby preventing the limiting ring from being displaced.

[0012] Preferably, the top of the fixing rod passes through the connecting groove and extends into the inside of the groove, the bottom of the pressing block is slidingly connected to the bottom of the groove, and the top of the fixing tube is fixedly connected with a stop block, which limits the position of the limiting ring, thereby facilitating the installation of the limiting ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, by setting a replacement mechanism, when the threaded pipe needs to be replaced during use, the pressing blocks on both sides are pressed toward the middle, and the two sliders move toward the middle through the push block to push the two side blocks away from one side and out of the corresponding slots. At this time, the threaded pipe can be pulled out. The thread in the threaded joint can be replaced by the structure, which is easy to operate and can quickly disassemble and install the threaded pipe in the threaded joint, avoiding the thread slippage of the threaded joint during use to affect the air tightness of the threaded joint, thereby improving the service life of the threaded joint and increasing the practicality of the device.

[0015] 2. In the utility model, by setting a limit mechanism, during use, when it is reinstalled, the limit ring is pushed in the opposite direction until one side of the limit ring contacts the stop block and stops. At this time, the pressing block is located in the groove, thereby completing the limitation of the replacement mechanism. The limit mechanism can limit the replacement mechanism after replacement, thereby avoiding the phenomenon of loosening of the threaded pipe under the action of external force, thereby improving the stability of the threaded joint during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the front side of the overall structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the front portion of the overall structure of the utility model;

[0019] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 for Figure 2 Enlarged structural diagram at point B in the middle.

[0021] Legend:

[0022] 1. Threaded tube; 2. Connecting tube; 3. Limiting mechanism; 301. Groove; 302. Connecting groove; 303. Limiting ring; 304. Connecting block; 305. Fixing screw; 306. Stop block; 4. Replacement mechanism; 401. Fixing tube; 402. Pressing block; 403. Fixing rod; 404. First spring; 405. Slider; 406. Top block; 407. Block; 408. Second spring; 409. Movable groove; 410. Movable plate; 411. Blocking slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a technical solution:

[0026] Example 1

[0027] Combine Figure 1-3 A special threaded joint assembly for steel wire braided hydraulic hose includes a connecting pipe 2, a replacement mechanism 4 is fixedly connected to the outer surface of the connecting pipe 2, a limiting mechanism 3 is sleeved on the outer surface of the replacement mechanism 4, and a threaded pipe 1 is arranged inside the replacement mechanism 4.

[0028] The replacement mechanism 4 includes a fixed tube 401, which is fixedly connected to the outer surface of the connecting tube 2. A slot 411 is provided at the top of the fixed tube 401. A first spring 404 is fixedly connected to the top of the slot 411. A slider 405 is fixedly connected to the bottom of the first spring 404. A top block 406 is fixedly connected to the bottom of the slider 405. A fixed rod 403 is fixedly connected to the top of the slider 405. A through hole is provided at the top of the slot 411. The top of the fixed rod 403 passes through the through hole and extends to the outside of the fixed tube 401. A pressing block 402 is fixedly connected to the top of the fixed rod 403. A movable groove 409 is provided at the top of the threaded tube 1. A second spring 408 is fixedly connected to the bottom of the movable groove 409. A movable plate 410 is fixedly connected to the top of the second spring 408. A clamping block 407 is fixedly connected to the top of the movable plate 410.

[0029] Furthermore, the left side of the clamping block 407 is set to an inclined surface, the movable plate 410 is slidably connected to the inner side of the movable groove 409, the pressing block 402 is set to an arc shape, the top block 406 is set to an arc shape, and the first spring 404 is sleeved on the outer surface of the fixed rod 403. When the threaded tube 1 needs to be replaced, the pressing blocks 402 on both sides are pressed toward the middle, and the two sliders 405 move toward the middle through the top block 406 to push the clamping blocks 407 on both sides away from one side and out of the corresponding clamping groove 411. At this time, the threaded tube 1 can be pulled out. The structure can be replaced by setting the threads in the threaded joint. The operation is convenient, and the threaded tube 1 in the threaded joint can be quickly disassembled and installed, avoiding the thread slippage of the threaded joint during use, affecting the air tightness of the threaded joint, improving the service life of the threaded joint, and increasing the practicality of the device.

[0030] Example 2

[0031] See Figure 1-4 , and on the basis of Example 1, it is further obtained that the limiting mechanism 3 includes a limiting ring 303, the limiting ring 303 is sleeved on the outer surface of the fixed tube 401, a groove 301 is opened on the right side of the limiting ring 303, a connecting groove 302 is opened at the bottom of the groove 301, the bottom of the connecting groove 302 is communicated with the inner side of the limiting ring 303, a connecting block 304 is fixedly connected to the left side of the limiting ring 303, a screw hole is opened at the top of the connecting block 304, a fixing screw 305 is threadedly connected to the inside of the screw hole, and the bottom end of the fixing screw 305 passes through the connecting block 304 and extends into the interior of the fixed tube 401.

[0032] Furthermore, the top of the fixing rod 403 passes through the connecting groove 302 and extends into the interior of the groove 301. The bottom of the pressing block 402 is slidably connected to the bottom of the groove 301. The top of the fixing tube 401 is fixedly connected with a stop block 306. When it is installed again, the limiting ring 303 is pushed in the opposite direction until one side of the limiting ring 303 contacts the stop block 306 and stops. At this time, the pressing block 402 is located in the groove 301, thereby completing the limitation of the replacement mechanism 4. The limiting mechanism 3 can limit the replacement mechanism 4 after replacement, thereby avoiding the loosening of the threaded tube 1 under the action of external force, thereby improving the stability of the threaded joint during use.

[0033] When the screw pipe 1 is replaced, the fixing screw 305 is unscrewed to make the limiting ring 303 lose the limiting position of the fixing screw 305. At this time, the limiting ring 303 is pushed in the direction of the fixing screw 305 until the pressing blocks 402 on both sides leave the corresponding grooves 301. The pressing blocks 402 on both sides are pressed toward the middle. The pressing blocks 402 on both sides move toward the middle and push the sliders 405 on both sides toward the middle through the fixing rod 403. The two sliders 405 move toward the middle and push the two side blocks 407 away from one side and out of the corresponding grooves 411 through the lifting block 406. At this time, the screw pipe 1 can be pulled out and replaced.

[0034] When replacing, push the threaded tube 1 toward the inside of the fixed tube 401, and under the action of the second spring 408, the blocking block 407 enters the corresponding blocking groove 411, thereby completing the installation of the threaded tube 1. After reinstalling, push the limiting ring 303 in the opposite direction until one side of the limiting ring 303 contacts the block 306 and stops. At this time, the pressing block 402 is located in the groove 301, thereby completing the limitation of the replacement mechanism 4.

Claims

1. A special threaded joint assembly for a steel wire braided hydraulic hose, comprising a connecting pipe (2), characterized in that: The outer surface of the connecting pipe (2) is fixedly connected to a replacement mechanism (4), the outer surface of the replacement mechanism (4) is sleeved with a limiting mechanism (3), and a threaded pipe (1) is provided inside the replacement mechanism (4); The replacement mechanism (4) comprises a fixed tube (401), the fixed tube (401) being fixedly connected to the outer surface of the connecting tube (2), a slot (411) being provided at the top of the fixed tube (401), a first spring (404) being fixedly connected to the top of the slot (411), a slider (405) being fixedly connected to the bottom of the first spring (404), a top block (406) being fixedly connected to the bottom of the slider (405), a fixed rod (403) being fixedly connected to the top of the slider (405), a through hole being provided at the top of the slot (411), a top of the fixed rod (403) passing through the through hole and extending to the outside of the fixed tube (401), a pressing block (402) being fixedly connected to the top of the fixed rod (403), a movable groove (409) being provided at the top of the threaded tube (1), a second spring (408) being fixedly connected to the bottom of the movable groove (409).

2. A special threaded joint assembly for steel wire braided hydraulic hose according to claim 1, characterized in that: The top of the second spring (408) is fixedly connected to a movable plate (410), and the top of the movable plate (410) is fixedly connected to a clamping block (407).

3. A threaded joint assembly for a steel wire braided hydraulic hose according to claim 2, characterized in that: The left side of the clamping block (407) is configured as an inclined surface, and the movable plate (410) is slidably connected to the inner side of the movable groove (409).

4. The threaded joint assembly for a steel wire braided hydraulic hose according to claim 1, characterized in that: The pressing block (402) is configured to be in an arc shape, the top block (406) is configured to be in an arc shape, and the first spring (404) is sleeved on the outer surface of the fixing rod (403).

5. The threaded joint assembly for steel wire braided hydraulic hose according to claim 1, characterized in that: The limiting mechanism (3) comprises a limiting ring (303), the limiting ring (303) is sleeved on the outer surface of the fixed tube (401), a groove (301) is provided on the right side of the limiting ring (303), a connecting groove (302) is provided at the inner bottom of the groove (301), and the inner bottom of the connecting groove (302) is connected to the inner side of the limiting ring (303).

6. A threaded joint assembly for a steel wire braided hydraulic hose according to claim 5, characterized in that: The left side of the limiting ring (303) is fixedly connected to a connecting block (304), a screw hole is provided on the top of the connecting block (304), a fixing screw (305) is threadedly connected to the inner side of the screw hole, and the bottom end of the fixing screw (305) passes through the connecting block (304) and extends into the interior of the fixing tube (401).

7. The threaded joint assembly for steel wire braided hydraulic hose according to claim 1, characterized in that: The top of the fixing rod (403) passes through the connecting groove (302) and extends into the interior of the groove (301); the bottom of the pressing block (402) is slidably connected to the bottom of the groove (301); and the top of the fixing tube (401) is fixedly connected with a stopper (306).

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