Engineering machinery swivel joint

Abstract

The utility model belongs to the technical field of swivel joints, and discloses an engineering machinery swivel joint which comprises a swivel joint body, a sleeve is installed outside the swivel joint body, a plugging plate is installed at one end of the sleeve, and a movable connecting assembly is installed on the sleeve. The mounting assembly is used for quickly disassembling the plugging plate along the sleeve, the mounting assembly comprises a mounting ring connected to one end of the sleeve in a sleeving mode and a fixing ring fixed to one end of the plugging plate, and a guide groove allowing the fixing ring to be inserted and pulled out is formed in one end of the mounting ring; according to the utility model, through the arrangement of the mounting assembly, the plugging plate can be quickly dismounted along the sleeve, so that the sleeve can maintain normal maintenance operation, thereby solving the problem that the plugging plate is difficult to dismount because the plugging plate and the sleeve are fixedly mounted in the prior art, being time-saving and labor-saving, effectively improving the maintenance efficiency of the sleeve, and improving the maintenance efficiency of the sleeve. And the practicability of the swivel joint is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of swivel joints, in particular to a swivel joint for engineering machinery. Background Art

[0002] The connection mode of the swivel joint can be selected according to the working situation, and the transmission medium inlet can be freely selected from the side or the rear end according to the working situation. During the use of construction machinery such as excavators, the oil pipe is generally protected by a swivel joint to facilitate the normal use of construction machinery such as excavators.

[0003] In the Chinese patent with publication number CN217328964U, a central swivel joint is disclosed. First, a sleeve is threaded onto the threaded interface pipe head on the central swivel joint body, and then the oil pipe is fixedly connected to the oil pipe joint. When the central swivel joint body rotates, the rotating ball rotates in the rotating seat, and the oil pipe joint and the oil pipe can rotate synchronously to avoid folding at the connection between the oil pipe and the oil pipe joint. At the same time, an opening is provided at one end of the sleeve, and a sealing plate is fixed at the opening. The sealing plate can achieve the purpose of disassembling the sleeve end and is convenient for later maintenance. However, when the above-mentioned central swivel joint is actually used, the sealing plate is fixedly installed on the sleeve end, which makes it difficult to disassemble the sealing plate, which is not only time-consuming and labor-intensive, but also causes low maintenance efficiency of the sleeve end, affecting the practicality of the swivel joint. Utility Model Content

[0004] The utility model provides an engineering machinery swivel joint to solve the problem that a plugging plate and a casing end of the existing swivel joint are fixedly installed, which makes it difficult to disassemble the plugging plate and causes low maintenance efficiency of the casing end.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swivel joint for engineering machinery, comprising:

[0006] A swivel joint body, wherein a sleeve is installed on the outside of the swivel joint body, a blocking plate is installed on one end of the sleeve, and a movable connecting component is installed on the sleeve;

[0007] The installation component is used for quickly disassembling the sealing plate along the sleeve, and the installation component includes a mounting ring sleeved on one end of the sleeve and a fixing ring fixed on one end of the sealing plate. One end of the mounting ring is provided with a guide groove for plugging and pulling out the fixing ring, and a limit assembly for stably limiting the fixing ring is arranged in the guide groove. The setting of the guide groove is beneficial to guiding and limiting the fixing ring, so that the sealing plate and the mounting ring are tightly fitted, thereby reducing the gap between the sealing plate and the mounting ring.

[0008] Preferably, the limiting assembly includes an arc ring fixed at one end of a fixing ring and a sphere installed in a guide groove, and the arc ring is in contact with the sphere, a spherical groove corresponding to the sphere is provided on the outside of the fixing ring, and the spherical groove and the sphere are clamped and fixed, and an adjustment assembly for extending and retracting the sphere along the guide groove is provided in the guide groove; through the provision of the arc ring, the outside of the sphere is in conflict with the outside of the arc ring, so as to move the sphere along the outside of the arc ring to approach the spherical groove provided on the fixing ring, and the size of the spherical groove is adapted to the sphere, which can reduce mutual interference between them and facilitate the ball to slide out or clamp along the spherical groove.

[0009] Preferably, the adjustment component includes a slide groove opened in the guide groove for the ball to slide into and a baffle fixed on the outside of the sphere, and the baffle and the slide groove are slidably connected, and a spring is installed between the baffle and the slide groove; through the setting of the spring, the deflation tightening and reset thrust are achieved, thereby giving the baffle a thrust toward one side of the sphere, which is used to make the sphere fit tightly in the spherical groove and enhance the stability between the sphere and the spherical groove.

[0010] Preferably, a positioning block is fixed to the outside of the baffle, a positioning groove corresponding to the positioning block is provided in the slide groove, and the positioning groove is slidably connected to the positioning block.

[0011] Preferably, the mounting ring is provided with a transmission assembly for adjusting the spring, the transmission assembly includes a bolt screwed to the outside of the mounting ring and an extrusion plate fixed to the top of the spring, a mounting seat is fixed to the top of the extrusion plate, one end of the bolt passes through the slide groove and is rotatably connected to the top of the mounting seat; the provision of the bolt is conducive to adjusting the tension of the spring, so that the pressure between the ball and the spherical groove is adjusted, further enhancing the stable extrusion between the ball and the spherical groove.

[0012] Preferably, a protective shell is sleeved on the outside of the bolt, and a slot for inserting the protective shell is opened at the top of the mounting ring. A magnetic block is fixed in the slot, and the magnetic block and the protective shell are fixed by magnetic attraction.

[0013] Preferably, a stabilizing block corresponding to the positioning groove is fixed to the outside of the extrusion plate, and the stabilizing block is slidably connected to the positioning groove.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] (1) By setting up the installation assembly, the plugging plate can be quickly disassembled along the casing, so that the casing can maintain normal maintenance operations, thereby solving the problem that the plugging plate is difficult to disassemble due to the fixed installation of the existing plugging plate and the casing. It saves time and effort, effectively improves the casing maintenance efficiency, and improves the practicality of the swivel joint.

[0016] (2) Through the setting of the transmission component, not only can a stable connection between the sealing plate and the mounting ring be achieved, but also the pressure between the ball and the spherical groove can be adjusted, thereby effectively improving the stability of the sealing plate and preventing the sealing plate from detaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when the plugging plate and the mounting ring are separated;

[0020] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0021] Figure 4 It is a structural schematic diagram of the utility model when the fixing ring is connected with the guide groove;

[0022] Figure 5 For this utility model Figure 4 The enlarged view of point B in the figure;

[0023] In the figure: 1. swivel joint body; 11. sleeve; 12. sealing plate; 13. connecting assembly; 2. mounting assembly; 21. mounting ring; 22. fixing ring; 23. guide groove; 24. spherical groove; 25. slide groove; 26. sphere; 27. baffle; 28. spring; 3. transmission assembly; 31. extrusion plate; 32. mounting seat; 33. bolt; 34. magnetic block; 35. slot; 36. protective shell. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1The engineering machinery swivel joint shown comprises:

[0026] A swivel joint body 1, a sleeve 11 is installed on the outside of the swivel joint body 1, a sealing plate 12 is installed at one end of the sleeve 11, and a movable connecting component 13 is installed on the sleeve 11; the structures and principles of the swivel joint body 1, the sleeve 11 and the connecting component 13 are all prior arts, and specific reference is made to the comparative document (publication number CN217328964U, patent name is central swivel joint), which will not be repeated here.

[0027] As can be seen from the above, when in use, the oil pipe is first fixedly connected to the connecting component 13. When the swivel joint body 1 rotates, the connecting component 13 rotates along the sleeve 11, so that the oil pipe and the connecting component 13 can rotate synchronously to avoid folding at the connection between the oil pipe and the connecting component 13. At the same time, the sealing plate 12 can achieve the purpose of disassembling the sleeve 11, which is convenient for later maintenance.

[0028] refer to Figure 1-Figure 4 As shown, the mounting assembly 2 is used for quickly disassembling the blocking plate 12 along the sleeve 11. The mounting assembly 2 includes a mounting ring 21 sleeved on one end of the sleeve 11 and a fixing ring 22 fixed on one end of the blocking plate 12. A guide groove 23 for plugging and pulling out the fixing ring 22 is provided at one end of the mounting ring 21, and a limiting assembly for stably limiting the fixing ring 22 is arranged in the guide groove 23; the limiting assembly includes an arcuate ring fixed at one end of the fixing ring 22 and a sphere 26 installed in the guide groove 23, and the arcuate ring is in contact with the sphere 26. A spherical groove 24 corresponding to the sphere 26 is provided on the outside of the fixing ring 22, and the spherical groove 24 is fixedly connected with the sphere 26, and an adjusting assembly for extending and retracting the sphere 26 along the guide groove 23 is arranged in the guide groove 23;

[0029] The adjustment assembly includes a slide groove 25 provided in the guide groove 23 for the ball 26 to slide into and a baffle 27 fixed to the outside of the ball 26 , and the baffle 27 is slidably connected to the slide groove 25 , and a spring 28 is installed between the baffle 27 and the slide groove 25 .

[0030] Through the above technical solution:

[0031] The spring 28 is pressed by the baffle plate 27 during the movement, so that the ball 26 moves upward along the slide groove 25, so that the ball 26 is disengaged from the spherical groove 24, and then the ball 26 contacts the arc ring, so that the fixing ring 22 is pulled out along the guide groove 23, so that the blocking plate 12 can be quickly disassembled along the sleeve 11, so that the sleeve 11 can maintain normal maintenance operations, thereby solving the problem that the blocking plate 12 is fixedly installed with the sleeve 11, which makes it difficult to disassemble the blocking plate 12, and saving time and effort, effectively improving the maintenance efficiency of the sleeve 11, and improving the practicality of the swivel joint.

[0032] Furthermore, a positioning block is fixed to the outside of the baffle 27, and a positioning groove corresponding to the positioning block is opened in the slide groove 25, and the positioning groove and the positioning block are slidably connected; based on this, the setting of the positioning block is conducive to the stable movement of the baffle 27 along the slide groove 25, which can prevent the baffle 27 from being offset during movement, thereby enhancing the stability of the baffle 27.

[0033] In addition, refer to Figure 1-Figure 5 As shown, a transmission assembly 3 for adjusting the spring 28 is provided on the mounting ring 21, and the transmission assembly 3 includes a bolt 33 screwed to the outside of the mounting ring 21 and an extrusion plate 31 fixed to the top of the spring 28, and a mounting seat 32 is fixed to the top of the extrusion plate 31, and one end of the bolt 33 penetrates into the slide groove 25 and is rotatably connected to the top of the mounting seat 32;

[0034] A protective shell 36 is sleeved on the outside of the bolt 33 , and a slot 35 for inserting the protective shell 36 is provided at the top of the mounting ring 21 . A magnetic block 34 is fixed in the slot 35 , and the magnetic block 34 and the protective shell 36 are fixed by magnetic attraction.

[0035] Through the above technical solution:

[0036] When in use, first pull the protective shell 36 to move the protective shell 36 in the direction of the force, at this time the magnetic block 34 is disconnected from the protective shell 36, so that the protective shell 36 is taken out along the slot 35, which is used to expose the bolt 33 to the operator's field of vision, and by rotating the bolt 33, the external thread on the bolt 33 cooperates with the internal thread on the mounting ring 21, so as to adjust the bolt 33 along the mounting ring 21. However, during the adjustment process of the bolt 33, the extrusion plate 31 is pushed to move downward along the slide groove 25, so as to adjust the spring 28. The tension between the baffle 27 and the extrusion plate 31 is adjusted, and at the same time, the adjustment of the tension of the spring 28 makes the pressure between the ball 26 and the spherical groove 24 synchronously adjusted, so that the ball 26 and the spherical groove 24 fit tightly to prevent mutual shaking. Not only can a stable connection between the sealing plate 12 and the mounting ring 21 be achieved, but the pressure between the ball 26 and the spherical groove 24 can also be adjusted, thereby effectively improving the stability of the sealing plate 12, preventing the sealing plate 12 from detaching, and allowing the swivel joint to be used normally.

[0037] Furthermore, a stabilizing block corresponding to the positioning groove is fixed to the outside of the extrusion plate 31, and the stabilizing block is slidably connected to the positioning groove; based on this, the setting of the stabilizing block is beneficial to limit the extrusion plate 31 when it moves along the slide groove 25, thereby effectively improving the stability of the extrusion plate 31.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A swivel joint for engineering machinery, characterized in that: include: A swivel joint body (1), wherein a sleeve (11) is installed on the outside of the swivel joint body (1), a blocking plate (12) is installed on one end of the sleeve (11), and a movable connecting component (13) is installed on the sleeve (11); The mounting assembly (2) is used for quickly disassembling the blocking plate (12) along the sleeve (11), the mounting assembly (2) comprising a mounting ring (21) sleeved on one end of the sleeve (11) and a fixing ring (22) fixed on one end of the blocking plate (12), one end of the mounting ring (21) being provided with a guide groove (23) for inserting and removing the fixing ring (22), and a limit assembly for stably limiting the fixing ring (22) being arranged in the guide groove (23).

2. The engineering machinery swivel joint according to claim 1, characterized in that: The limit assembly comprises an arcuate ring fixed at one end of a fixed ring (22) and a sphere (26) installed in a guide groove (23), wherein the arcuate ring is in contact with the sphere (26), a spherical groove (24) corresponding to the sphere (26) is provided on the outside of the fixed ring (22), and the spherical groove (24) and the sphere (26) are fixedly engaged, and an adjustment assembly for extending and retracting the sphere (26) along the guide groove (23) is provided in the guide groove (23).

3. The engineering machinery swivel joint according to claim 2, characterized in that: The adjustment assembly comprises a slide groove (25) provided in the guide groove (23) for the ball (26) to slide into, and a baffle (27) fixed outside the ball (26), wherein the baffle (27) and the slide groove (25) are slidably connected, and a spring (28) is installed between the baffle (27) and the slide groove (25).

4. The engineering machinery swivel joint according to claim 3, characterized in that: A positioning block is also fixed to the outside of the baffle (27), a positioning groove corresponding to the positioning block is provided in the slide groove (25), and the positioning groove is slidably connected to the positioning block.

5. The engineering machinery swivel joint according to claim 4, characterized in that: The mounting ring (21) is provided with a transmission assembly (3) for adjusting the spring (28), the transmission assembly (3) comprising a bolt (33) threadedly connected to the outside of the mounting ring (21) and an extrusion plate (31) fixed to the top of the spring (28), a mounting seat (32) being fixed to the top of the extrusion plate (31), one end of the bolt (33) passing through the slide groove (25) and being rotatably connected to the top of the mounting seat (32).

6. The engineering machinery swivel joint according to claim 5, characterized in that: The outer portion of the bolt (33) is also sleeved with a protective shell (36), and the top end of the mounting ring (21) is provided with a slot (35) for inserting the protective shell (36), a magnetic block (34) is fixed in the slot (35), and the magnetic block (34) and the protective shell (36) are fixed by magnetic attraction.

7. The engineering machinery swivel joint according to claim 5, characterized in that: A stabilizing block corresponding to the positioning groove is also fixed on the outside of the extrusion plate (31), and the stabilizing block is slidably connected to the positioning groove.

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