Compression type hydraulic connector

Abstract

The utility model discloses a compression type hydraulic joint, and relates to the field of joints, the compression type hydraulic joint can lock an internal thread sleeve through a positioning assembly after two joints are compressed and connected, so that the situation that the internal thread sleeve deflects due to vibration in the operation process of daily equipment is avoided, and the service life of the internal thread sleeve is prolonged. Therefore, the butt joint tightness of the joint is ensured; according to the connector, the connecting strip is detachably installed on the connector body through the clamping assembly, so that when vibration is little or no vibration occurs in an application scene, the connecting strip can be selectively detached, the connecting strip is applied to other connector bodies needing internal thread sleeve locking for use, and the adaptability of the connector is improved.

Description

Technical Field

[0001] The utility model relates to the field of joints, in particular to a compression type hydraulic joint. Background Art

[0002] In the hydraulic system, hydraulic joints are required for the connection between pipelines and between pipelines and the oil inlet and outlet of each device. Traditional hydraulic joints are quick-release type and threaded tightening type. The threaded tightening type is to rotate the internal thread sleeve on the end of the male joint, and tighten the internal thread sleeve on the external thread at the end of the female joint during installation, so as to press the joint parts of the male joint and the female joint together to complete the installation work;

[0003] The hydraulic system is usually arranged on lifting equipment or sports machinery equipment. These equipment will produce large vibrations during daily operation, which makes the threaded sleeve easy to deflect, resulting in loose connection between the male and female joints. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a compression hydraulic joint that can lock an internal threaded sleeve to prevent it from deflecting during daily use.

[0005] In order to solve the existing technical problems, the technical solution of the utility model is as follows:

[0006] A compression type hydraulic joint comprises a joint body, one end of which is rotatably mounted with an internal threaded sleeve, one end of which is close to the internal threaded sleeve and fixed with a rubber sealing gasket, and an outer wall of the joint body is mounted with a positioning assembly for positioning the internal threaded sleeve.

[0007] Preferably, the positioning assembly includes ratchets fixed at one end of the internal threaded sleeve at equal angle intervals, a connecting strip is slidably installed on the outer wall of the joint body, a clamping assembly for positioning the connecting strip on the joint body is installed on the connecting strip, an angle groove is provided at one end of the connecting strip close to the ratchet, a card is rotatably installed on the inner wall of the angle groove, the card cooperates with the ratchet, one side of the card abuts against the inner wall of the angle groove, a first spring is fixed to the inner wall of the angle groove, and the end of the first spring away from the inner wall of the angle groove is fixed to the outer wall of the card.

[0008] Preferably, a trapezoidal slide bar is fixed to one side of the connecting strip close to the joint body, a trapezoidal slide groove is provided on the outer wall of the joint body, and the trapezoidal slide bar is slidably inserted into the inner side of the trapezoidal slide groove.

[0009] Preferably, the clamping assembly includes an installation slot provided on the connecting strip, one end of the installation slot passes through the trapezoidal sliding strip, a clamping strip is slidably inserted in the installation slot, a retaining ring is fixed to the outer wall of the clamping strip, the retaining ring slides with the inner wall of the installation slot, a sealing plate is fixed to the outer wall of the connecting strip close to the installation slot corresponding to the installation slot, the clamping strip is slidably connected to the sealing plate through a sliding hole, the outer side of the clamping strip located at the inner side of the installation slot is sleeved with a second spring, one end of the second spring is in pressure contact with the outer wall of the sealing plate, and the other end of the second spring is in pressure contact with the outer wall of the retaining ring, a clamping slot is provided on the inner wall of the trapezoidal sliding strip, one end of the clamping strip close to the clamping slot passes through the trapezoidal sliding strip and is clamped with the clamping slot, and one end of the clamping strip away from the clamping slot passes through the sealing plate and is fixed with a pulling head.

[0010] Preferably, a sliding sleeve is fixed on an outer wall of one side of the joint body close to the connecting strip, and the connecting strip is slidably inserted into the inner side of the sliding sleeve.

[0011] Preferably, the clamping assembly includes a mounting groove provided on the connecting strip, a clamping strip is slidably inserted in the mounting groove, a retaining ring is fixed to the outer wall of the clamping strip, the retaining ring slides with the inner wall of the mounting groove, a sealing plate is fixed to the outer wall of the connecting strip close to the mounting groove and corresponding to the mounting groove, the clamping strip is slidably connected to the sealing plate through a sliding hole, a second spring is sleeved on the outer side of the clamping strip located on the inner side of the mounting groove, one end of the second spring is in pressure contact with the outer wall of the sealing plate, and the other end of the second spring is in pressure contact with the outer wall of the retaining ring, a clamping groove is provided on the outer wall of the joint body, one end of the clamping strip close to the clamping groove is clamped with the clamping groove, and one end of the clamping strip away from the clamping groove passes through the sealing plate and is fixed with a pull head.

[0012] Preferably, one end of the card strip close to the card slot is arranged in an inclined shape.

[0013] Preferably, anti-slip grooves are provided at equal intervals on the outer wall of the pulling head.

[0014] Compared with the prior art, the advantages of the utility model are as follows:

[0015] 1. The positioning assembly provided in the utility model can lock the internal thread sleeve after the two joints are pressed and connected, so as to avoid the deflection of the internal thread sleeve due to vibration during the daily operation of the equipment, thereby ensuring the tightness of the joint connection;

[0016] 2. The utility model utilizes a snap-on assembly to detachably mount the connecting strip on the connector body, so that when little or no vibration occurs in the application scenario, the connecting strip can be selectively removed and used on other connector bodies that need to be locked with an internal threaded sleeve, thereby improving the adaptability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 This is a schematic diagram of the ratchet structure of the present utility model.

[0019] Figure 3 This is the present utility model Figure 2 An enlarged view of part A.

[0020] Figure 4 This is one of the schematic diagrams of the structure of the second embodiment of the present utility model.

[0021] Figure 5 This is the second of the schematic diagrams of the structure of the second embodiment of the present utility model.

[0022] Figure 6 This is one of the schematic diagrams of the structure of the third embodiment of the present utility model.

[0023] Figure 7 This is the second of the schematic diagrams of the structure of the third embodiment of the present utility model.

[0024] Figure 8 This is the third of the schematic diagrams of the structure of the third embodiment of the present utility model.

[0025] Reference numerals: 1, joint body; 2, internal thread sleeve; 3, rubber sealing washer; 4, ratchet; 5, connecting bar; 6, clamping assembly; 61, installation groove; 62, clamping bar; 63, retaining ring; 64, sealing plate; 65, second spring; 66, card slot; 67, pulling head; 7, angle groove; 8, card; 9, first spring; 10, trapezoidal slide bar; 11, trapezoidal slide groove; 12, sliding sleeve; 13, anti-slip pattern. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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.

[0027] Embodiment 1. Please refer to Figures 1 to 3 , this embodiment provides a compression type hydraulic joint, including a joint body 1. One end of the joint body 1 is rotatably installed with an internal thread sleeve 2. A rubber sealing washer 3 is fixed at one end of the joint body 1 close to the internal thread sleeve 2. A positioning component for positioning the internal thread sleeve 2 is installed on the outer wall of the joint body 1.

[0028] The positioning assembly includes ratchets 4 fixed at one end of the internal threaded sleeve 2 at equal angle intervals, a connecting strip 5 is slidably installed on the outer wall of the joint body 1, and a clamping assembly 6 for positioning the connecting strip 5 on the joint body 1 is installed on the connecting strip 5. An angle groove 7 is provided at one end of the connecting strip 5 close to the ratchet 4, and a card 8 is rotatably installed on the inner wall of the angle groove 7. The card 8 cooperates with the ratchet 4, and one side of the card 8 abuts against the inner wall of the angle groove 7. A first spring 9 is fixed to the inner wall of the angle groove 7, and the end of the first spring 9 away from the inner wall of the angle groove 7 is fixed to the outer wall of the card 8.

[0029] When connecting two joint bodies 1, align the internal thread sleeve 2 on one joint body 1 with the other joint body 1, rotate the internal thread sleeve 2 so that the internal thread sleeve 2 is screwed onto the external thread on the other joint body 1, so that the ends of the two joint bodies 1 are pressed and butted, and the installation work is completed;

[0030] When the internal threaded sleeve 2 is rotated, the ratchet 4 is driven to rotate, so that the ratchet 4 continuously pushes the card 8, causing the card 8 to flip and compress the first spring 9. After the rotation stops, the first spring 9 rebounds and causes the card 8 to hit the inner wall of the angle groove 7 again. The card 8 can clamp the ratchet 4, so that the internal threaded sleeve 2 cannot rotate, thereby ensuring the tightness of the connection between the joint bodies 1. When contacting the connection between the joint bodies 1, the connecting strip 5 is separated from the joint body 1 by operating the clamping assembly 6, and then the contact locking work of the internal threaded sleeve 2 is completed, and then the internal threaded sleeve 2 can be rotated.

[0031] For example 2, please refer to Figure 4 and Figure 5 This embodiment provides a further technical solution based on the first embodiment. A trapezoidal slide bar 10 is fixed to one side of the connecting strip 5 close to the joint body 1. A trapezoidal slide groove 11 is provided on the outer wall of the joint body 1. The trapezoidal slide bar 10 is slidably inserted into the inner side of the trapezoidal slide groove 11.

[0032] When installing the connecting strip 5, align the trapezoidal slide strip 10 on the connecting strip 5 with the trapezoidal slide groove 11 and insert it into the trapezoidal slide groove 11. After being inserted into place, it is clamped by the clamping assembly 6;

[0033] The clamping assembly 6 includes a mounting groove 61 provided on the connecting strip 5, one end of the mounting groove 61 passes through the trapezoidal slide bar 10, a clamping strip 62 is slidably inserted in the mounting groove 61, a retaining ring 63 is fixed to the outer wall of the clamping strip 62, the retaining ring 63 slides with the inner wall of the mounting groove 61, a sealing plate 64 is fixed to the outer wall of the connecting strip 5 on the side close to the mounting groove 61 corresponding to the mounting groove 61, the clamping strip 62 is slidably connected to the sealing plate 64 through a sliding hole, and a second spring is sleeved on the outer side of the clamping strip 62 located on the inner side of the mounting groove 61 65, one end of the second spring 65 is pressed and contacted with the outer wall of the sealing plate 64, and the other end of the second spring 65 is pressed and contacted with the outer wall of the retaining ring 63. A clamping groove 66 is provided on the inner wall of the trapezoidal slide 11. One end of the clamping strip 62 near the clamping groove 66 passes through the trapezoidal slide 10 and is clamped with the clamping groove 66. One end of the clamping strip 62 away from the clamping groove 66 passes through the sealing plate 64 and is fixed with a pull head 67. One end of the clamping strip 62 near the clamping groove 66 is arranged in an inclined shape, and anti-slip grooves 13 are provided on the outer wall of the pull head 67 at equal intervals.

[0034] During the process of the trapezoidal slide 10 being inserted into the trapezoidal slide groove 11 and slidingly inserted, when the inclined surface of the clamping strip 62 contacts the connector body 1, it will be pushed to make the clamping strip 62 slide and sink into the trapezoidal slide 10 until the trapezoidal slide 10 slides into place, and the clamping strip 62 is opposite to the clamping groove 66. At this time, under the action of the elastic force of the second spring 65, the clamping strip 62 is clamped into the clamping groove 66 to complete the connection between the connecting strip 5 and the connector body 1. When unlocking, pull the pull head 67 to separate the clamping strip 62 from the clamping groove 66 to complete the unlocking.

[0035] By utilizing the snap-on assembly 6 to detachably mount the connecting strip 5 on the connector body 1, when less or no vibration occurs in the application scenario, the connecting strip 5 can be selectively removed and used on other connector bodies 1 that need to be locked with the internal threaded sleeve 2, thereby improving the adaptability of the connector.

[0036] For example 3, please refer to Figures 6 to 8 This embodiment provides a further technical solution based on the first embodiment. A sliding sleeve 12 is fixed on the outer wall of the connector body 1 on one side close to the connecting strip 5 , and the connecting strip 5 is slidably inserted into the inner side of the sliding sleeve 12 .

[0037] The clamping assembly 6 includes a mounting groove 61 provided on the connecting strip 5, in which a clamping strip 62 is slidably inserted, and a retaining ring 63 is fixed on the outer wall of the clamping strip 62, and the retaining ring 63 slides with the inner wall of the mounting groove 61, and a sealing plate 64 is fixed on the outer wall of the connecting strip 5 close to the mounting groove 61 and corresponds to the mounting groove 61, and the clamping strip 62 is slidably connected with the sealing plate 64 through a sliding hole, and the outer side of the clamping strip 62 located at the inner side of the mounting groove 61 is sleeved with a second spring 65, one end of the second spring 65 is in pressure contact with the outer wall of the sealing plate 64, and the other end of the second spring 65 is in pressure contact with the outer wall of the retaining ring 63, and a clamping groove 66 is provided on the outer wall of the joint body 1, and one end of the clamping strip 62 close to the clamping groove 66 is clamped with the clamping groove 66, and one end of the clamping strip 62 away from the clamping groove 66 passes through the sealing plate 64 and is fixed with a pull head 67, and one end of the clamping strip 62 close to the clamping groove 66 is arranged in an inclined shape, and the outer wall of the pull head 67 is provided with anti-slip grooves 13 at equal intervals.

[0038] The difference from the second embodiment is that the connecting strip 5 completes the sliding connection with the joint body 1 through the sliding sleeve 12, and during installation, the end of the connecting strip 5 is inserted into the sliding sleeve 12 to carry out the installation.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressing type hydraulic joint, comprising a joint body (1), one end of the joint body (1) is rotatably installed with an internal thread sleeve (2), and a rubber sealing washer (3) is fixed at one end of the joint body (1) close to the internal thread sleeve (2), characterized in that, A positioning component for positioning the internal thread sleeve (2) is installed on the outer wall of the joint body (1).

2. The compression type hydraulic joint according to claim 1, wherein The positioning component includes ratchet teeth (4) fixed at equal angular intervals at one end of the internal thread sleeve (2). A connecting strip (5) is slidably installed on the outer wall of the joint body (1). A clamping component (6) for positioning the connecting strip (5) on the joint body (1) is installed on the connecting strip (5). An angular groove (7) is formed at one end of the connecting strip (5) close to the ratchet teeth (4). A card (8) is rotatably installed on the inner wall of the angular groove (7). The card (8) cooperates with the ratchet teeth (4). One side of the card (8) abuts against the inner wall of the angular groove (7). A first spring (9) is fixed on the inner wall of the angular groove (7). One end of the first spring (9) far from the inner wall of the angular groove (7) is fixed to the outer wall of the card (8).

3. The compression type hydraulic joint according to claim 2, characterized in that, A trapezoidal sliding strip (10) is fixed on one side of the connecting strip (5) close to the joint body (1). A trapezoidal sliding groove (11) is formed on the outer wall of the joint body (1). The trapezoidal sliding strip (10) is slidably inserted inside the trapezoidal sliding groove (11).

4. The compression type hydraulic joint according to claim 3, wherein, The clamping component (6) includes an installation groove (61) formed on the connecting strip (5). One end of the installation groove (61) penetrates through the trapezoidal sliding strip (10). A clamping strip (62) is slidably inserted inside the installation groove (61). A retaining ring (63) is fixed on the outer wall of the clamping strip (62). The retaining ring (63) slides on the inner wall of the installation groove (61). A sealing plate (64) corresponding to the installation groove (61) is fixed on the outer wall of the connecting strip (5) close to the installation groove (61). The clamping strip (62) is slidably connected to the sealing plate (64) through a sliding hole. A second spring (65) is sleeved on the outer side of the part of the clamping strip (62) located inside the installation groove (61). One end of the second spring (65) is in pressing contact with the outer wall of the sealing plate (64). The other end of the second spring (65) is in pressing contact with the outer wall of the retaining ring (63). A clamping groove (66) is formed on the inner wall of the trapezoidal sliding groove (11). One end of the clamping strip (62) close to the clamping groove (66) passes through the trapezoidal sliding strip (10) and is clamped with the clamping groove (66). One end of the clamping strip (62) facing away from the clamping groove (66) penetrates through the sealing plate (64) and is fixed with a pulling head (67).

5. The compression type hydraulic joint according to claim 2, wherein, A sliding sleeve (12) is fixed on the outer wall of the joint body (1) close to the connecting strip (5). The connecting strip (5) is slidably inserted inside the sliding sleeve (12).

6. The compression type hydraulic joint according to claim 5, wherein, The clamping assembly (6) comprises a mounting groove (61) provided on the connecting strip (5), a clamping strip (62) being slidably inserted in the mounting groove (61), a retaining ring (63) being fixed on the outer wall of the clamping strip (62), the retaining ring (63) slidingly sliding with the inner wall of the mounting groove (61), a sealing plate (64) being fixed on the outer wall of the connecting strip (5) on the side close to the mounting groove (61) corresponding to the mounting groove (61), the clamping strip (62) being slidably connected with the sealing plate (64) via a sliding hole, the clamping strip (62) being located A second spring (65) is sleeved on the outer side of the inner part of the installation groove (61), one end of the second spring (65) is in pressure contact with the outer wall of the sealing plate (64), and the other end of the second spring (65) is in pressure contact with the outer wall of the retaining ring (63). A clamping groove (66) is provided on the outer wall of the joint body (1), one end of the clamping strip (62) close to the clamping groove (66) is clamped with the clamping groove (66), and one end of the clamping strip (62) away from the clamping groove (66) passes through the sealing plate (64) and is fixed with a pull head (67).

7. The compression hydraulic joint according to claim 4 or 6, characterized in that, One end of the clamping strip (62) close to the clamping slot (66) is arranged in an inclined shape.

8. The compression hydraulic joint according to claim 4 or 6, characterized in that, The outer wall of the pulling head (67) is provided with anti-slip grooves (13) at equal intervals.

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