A rotary joint and spray eyewash device

Abstract

The utility model discloses a rotary joint and a spray eyewash, comprising: a fixed sleeve, fixed to the top of a lower tube body, with a guide notch opening upward on the side wall of the fixed sleeve, and one side wall of the guide notch is a spiral guide wall; a rotating sleeve, fixed to the upper tube body, with a downward guide block on the rotating sleeve, and the guide block has a sliding wall matched with the guide wall and can be embedded in the guide notch; and a locking handle, which is vertically arranged, and the middle part of which is rotatably fixed to the fixed sleeve through a horizontal rotating shaft, and the upper end of the locking handle is located above the guide wall, and is buckled inwardly under the action of a torsion spring, and can limit the guide block from sliding downward into the guide notch. The spray eyewash of the present application can rotate to a set position when collecting flushing liquid through the setting of the rotary joint, and will not cause pollution to the on-site environment.

Description

Technical Field

[0001] The utility model relates to the technical field of eye washers, in particular to a rotary joint and a spray eye washer. Background Art

[0002] Eyewash is used in emergency situations when toxic and harmful substances (such as chemical liquids) splash onto the body, face, or eyes of workers, or when a fire causes the workers' clothing to catch fire. Generally, when splashed with acidic or alkaline chemical liquids, you should immediately rinse with plenty of water, and then rinse with alkaline or acidic liquids that do not hurt the skin.

[0003] After the eyewash station is out of use for a period of time, it is necessary to test the eyewash station to check whether it can be used normally. However, during the test, the waste liquid flushed out usually falls directly on the ground, causing pollution to the ground. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rotary joint and a spray eye washer. The spray eye washer can be rotated to a set position when collecting flushing liquid through the setting of the rotary joint.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A rotary joint, used to connect two pipes plugged in up and down, characterized by comprising:

[0007] A fixing sleeve is fixed to the top of the lower tube body, and a guide notch is provided on the side wall of the fixing sleeve, the guide notch opening upward, and a side wall of the guide notch is a spiral guide wall;

[0008] A rotating sleeve is fixed on the upper tube body, the rotating sleeve is provided with a downward guide block, the guide block has a sliding wall matched with the guide wall and can be embedded in the guide notch; and

[0009] The lock handle is vertically arranged, and the middle part thereof is rotatably fixed on the fixing sleeve through a horizontal rotating shaft. The upper end of the lock handle is located above the guide wall and is buckled inwardly under the action of a torsion spring, so as to limit the guide block from sliding downward into the guide notch.

[0010] A further technical solution is that a positioning notch is provided on the side wall of the fixed sleeve, one side wall of the positioning notch is a spiral positioning wall, the spiral direction of the positioning wall is the same as that of the guide wall, and the upper end of the positioning wall has a vertically upward positioning section; the rotating sleeve has a downward positioning block, the positioning block can be embedded in the positioning notch, and its lower end has a positioning head, and the side of the positioning head facing the positioning wall is a vertical surface.

[0011] A further technical solution is that after the rotating sleeve rotates 90 degrees, the positioning head is rotationally limited by the positioning section.

[0012] A further technical solution is that the upper end of the locking handle abuts against the outer wall of the upper tube body to limit the guide block from sliding downward into the guide notch.

[0013] A further technical solution is that after the guide block is embedded in the guide notch, the upper top surface of the fixed sleeve contacts the lower bottom surface of the rotating sleeve.

[0014] A further technical solution is that a protective jacket is provided outside the rotary joint to protect the fixed sleeve and the rotating sleeve, the protective jacket is detachably fixed to the vertical pipe, the rotating sleeve can rotate inside the protective jacket, and the protective jacket has a window for exposing the lock handle.

[0015] A spray eyewash, comprising a spray eyewash body, characterized in that it also comprises a waste liquid recovery device, the waste liquid recovery device comprising:

[0016] A standpipe, the bottom end of which is closed and fixed with a base for supporting it, the bottom of the standpipe being connected to a drain pipe of an eyewash basin in the spray eyewash;

[0017] A swing pipe, one end of which has an upper pipe section extending vertically upwards, and the other end of which has a lower pipe section extending vertically downwards, wherein the lower pipe section is inserted into the vertical pipe; and

[0018] A water receiving tray is fixed to the upper end of the upper pipe section and is connected to the upper pipe section;

[0019] The vertical pipe and the swing pipe are connected through the above-mentioned rotating joint, the fixed sleeve is fixed on the top of the vertical pipe, and the rotating sleeve is fixed on the lower pipe section.

[0020] A further technical solution is that the water receiving tray is funnel-shaped.

[0021] A further technical solution is that the length of the swing pipe inserted downward into the vertical pipe is 5 to 20 cm. The beneficial effects of the above technical solution are:

[0022] The device uses a special structure of the rotary joint to enable the upper tube to swing autonomously after pressing the lock handle downward. Under the weight of the upper tube, the sliding wall on the guide block spirally rotates downward along the guide wall on the guide notch, so that the upper tube automatically rotates to the set position. The rotation angle of the upper tube is the same as the central angle corresponding to the guide wall. The rotation angle of the upper tube can be controlled by presetting the size of the guide wall. When the upper tube is reset, the operator pushes the upper tube to reset and limits the rotating sleeve through the lock handle.

[0023] The spray eyewash using the rotary joint can drive the water receiving tray to swing with the swing pipe. When the spray eyewash is flushing, the water receiving tray rotates to the bottom of the spray head without misalignment, and can fully collect the flushing liquid sprayed into the water receiving basin, collect the flushing liquid under the spray, and enter the vertical pipe through the swing pipe, and finally flow into the drain pipe of the eyewash basin in the eyewash, and be discharged from the site without causing pollution to the site environment. When the flushing is completed, the water receiving tray rotates in the opposite direction to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Figure 1 It is a structural schematic diagram of the spray eyewash device in the utility model in a state where no water is connected;

[0026] Figure 2 It is a structural schematic diagram of the water receiving state of the spray eyewash device in the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the rotary joint installed after the upper and lower pipe bodies in the utility model Figure 1 ;

[0028] Figure 4 This is a schematic diagram of the structure of the rotary joint installed after the upper and lower pipe bodies in the utility model Figure 2 ;

[0029] Figure 5 This is a schematic diagram of the structure of the rotary joint in the utility model. Figure 1 ;

[0030] Figure 6 This is a schematic diagram of the structure of the rotary joint in the utility model. Figure 2 ;

[0031] Figure 7 This is a schematic diagram of the structure of the rotary joint in the utility model. Figure 3 ;

[0032] Figure 8 It is a structural schematic diagram of the rotating sleeve in the utility model;

[0033] Fig. 9 It is a structural schematic diagram of the fixing sleeve in the utility model. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1 to 9 As shown, a rotary joint 40 is used to connect two sections of pipe bodies plugged in from top to bottom, and can lock the upper pipe body after rotating it to a set angle. The rotary joint 40 includes a fixed sleeve 41, a rotating sleeve 42 and a locking handle. The fixed sleeve 41 is fixed to the top of the lower pipe body, and a guide notch opening upward is provided on the side wall of the fixed sleeve 41, and one side wall of the guide notch is a spiral guide wall; the rotating sleeve 42 is fixed to the upper pipe body, and the rotating sleeve 42 has a downward guide block, and the guide block has a sliding wall that cooperates with the guide wall and can be embedded in the guide notch; and the locking handle is vertically arranged, and the middle part of the locking handle is rotatably fixed to the fixed sleeve 41 through a horizontal rotating shaft, and the upper end of the locking handle is located above the guide wall, and is buckled inwardly under the action of a torsion spring, which can limit the guide block from sliding downward into the guide notch.

[0037] The device uses a special structure of the rotary joint 40 to enable the upper tube body to swing autonomously after pressing the lock handle downward. Under the weight of the upper tube body, the sliding wall on the guide block spirally rotates downward along the guide wall on the guide notch, so that the upper tube body automatically rotates to the set position. The rotation angle of the upper tube body is the same as the central angle corresponding to the guide wall. The rotation angle of the upper tube body can be controlled by presetting the size of the guide wall. When the upper tube body is reset, the operator pushes the upper tube body to reset and limits the rotation sleeve 42 through the lock handle.

[0038] A spray eyewash includes a spray eyewash body and a waste liquid recovery device, wherein the waste liquid recovery device includes a vertical pipe 10, a swing pipe 20, a water receiving tray 30 and a rotary joint 40. The vertical pipe 10, the swing pipe 20 and the water receiving tray 30 form a communicating channel, and the rotary joint 40 realizes the rotation connection and locking between the vertical pipe 10 and the swing pipe 20.

[0039] The bottom end of the standpipe 10 is closed and fixed with a base for supporting it, and the base is placed or fixed on the ground by bolts. The bottom of the standpipe 10 is connected to the drain pipe of the eyewash basin in the spray eyewash, and the liquid in the standpipe 10 can be discharged into the drainage pipeline of the spray eyewash.

[0040] The swing pipe 20 is a special-shaped pipe, one end of which has an upper pipe section 21 pointing vertically upwards, and the upper pipe section 21 is sealed and connected to a water receiving tray 30, which is funnel-shaped. The other end of the swing pipe 20 has a lower pipe section 22 pointing vertically downwards, and the lower pipe section 22 is inserted into the vertical pipe 10. The lower end of the upper pipe section 21 is not lower than the upper end of the lower pipe section 22. The upper pipe section 21 and the lower pipe section 22 can be connected through a horizontal or inclined conduit, and all the liquid in the swing pipe 20 can be discharged into the vertical pipe 10, so that there is no liquid residue in the swing pipe 20. And preferably, the length of the swing pipe 20 inserted downward into the vertical pipe 10 is 5 to 20 cm, so as to ensure that when the swing pipe 20 is discharged downward, there will be no overflow from the gap. Of course, a rotary seal can also be made between the outer wall of the lower pipe section 22 and the inner wall of the vertical pipe 10.

[0041] The rotary joint 40 includes a fixed sleeve 41 and a rotating sleeve 42. The lower end of the fixed sleeve 41 is sleeved on the outer wall of the top of the vertical pipe 10 and is screwed to the vertical pipe 10, and the upper end protrudes upward from the vertical pipe 10. A guide notch 411 is provided on the side wall of the fixed sleeve 41. One side wall of the guide notch 411 is a spiral guide wall 412. The rotating sleeve 42 is sleeved on the outer wall of the lower pipe section 22 and is fixed to the lower pipe section 22 of the vertical pipe 10 by screws. The rotating sleeve 42 is 5 to 20 cm away from the bottom end of the lower pipe section 22. A downward guide block 421 is provided on the rotating sleeve 42. The guide block 421 has a sliding wall 422 that cooperates with the guide wall 412 and can be embedded in the guide notch 411. When the guide block 421 is embedded in the guide notch 411, the upper top surface of the fixed sleeve 41 contacts the lower bottom surface of the rotating sleeve 42, thereby ensuring the stability of the upper and lower positions of the swing pipe 20 after rotation.

[0042] The lock handle 43 is vertically arranged, and has two mounting arms extending outward horizontally on the fixing sleeve 41. The middle part of the lock handle 43 is rotatably fixed between the two mounting arms through a horizontal rotating shaft, and a torsion spring is mounted on the rotating shaft. The upper end of the lock handle 43 is located above the guide wall 412, and is buckled inwardly under the action of the torsion spring, which can limit the guide block 421 from sliding downward into the guide notch 411. Specifically, the upper end of the lock handle 43 abuts against the outer wall of the swing tube 20 to limit the guide block 421 from sliding downward into the guide notch 411, so that the state of the swing tube 20 remains stable.

[0043] A protective jacket is provided outside the rotary joint 40 to protect the fixed sleeve 41 and the rotating sleeve 42, so as to prevent impurities from entering between the fixed sleeve 41 and the rotating sleeve 42 and affecting the rotation stroke of the swing pipe 20. The protective jacket is detachably fixed to the vertical pipe 10 by screws, and the rotating sleeve 42 can rotate in the protective jacket, and a window is provided on the protective jacket for exposing the lock handle 43, which does not affect the use of the lock handle 43.

[0044] In the waste liquid recovery device, the swing pipe 20 can drive the water receiving tray 30 to swing. When the spray eyewash is flushing, the water receiving tray 30 rotates to the bottom of the spray head, collects the flushing liquid under the spray, and enters the vertical pipe 10 through the swing pipe 20, and finally flows into the drainage pipe of the eyewash basin in the eyewash, and is discharged from the scene, which will not cause pollution to the on-site environment. When the flushing is completed, the water receiving tray 30 rotates in the opposite direction to reset.

[0045] In the device, through the special structure of the rotary joint 40, the lock handle 43 is pressed downward to release the restriction of the upper end of the lock handle 43 on the rotating sleeve 42. Under the action of the gravity of the swing pipe 20 itself, the sliding wall 422 on the guide block 421 spirally rotates downward along the guide wall 412 on the guide notch 411, so that the water receiving tray 30 automatically rotates a certain angle and moves back to the bottom of the sprinkler head, realizing the autonomous swing of the swing pipe 20. When the flushing is completed, the operator pushes the swing pipe 20 to rotate upward and reset, and limits the rotating sleeve 42 through the lock handle 43.

[0046] The rotation angle of the swing tube 20 is the same as the central angle corresponding to the guide wall 412 . The rotation angle of the swing tube 20 can be controlled by presetting the size of the guide wall 412 .

[0047] Preferably, the swing pipe 20 allows a rotation angle of 90°. When the swing pipe 20 moves downward and rotates 90°, the guide block 421 falls into the bottom of the guide notch 411 and is limited by the bottom of the guide notch 411. At the same time, the side surface of the guide notch 411 opposite to the guide wall 412 can also limit the guide block 421 from continuing to move downward and rotate. Thus, the water receiving tray 30 can be reliably rotated to the right below the spray head without misalignment, and the sprayed flushing liquid can be fully collected in the water receiving basin without leakage.

[0048] In order to limit the position of the swing tube 20 after it moves upward and rotates 90°, a positioning notch 413 is provided on the side wall of the fixed sleeve 41. One side wall of the positioning notch 413 is a spiral positioning wall. The spiral direction of the positioning wall is the same as that of the guide wall 412. The upper end of the positioning wall has a vertical positioning section 414. The rotating sleeve 42 has a downward positioning block 423. The positioning block 423 can be embedded in the positioning notch 413. The lower end of the positioning block 423 has a positioning head 424. The side of the positioning head 424 facing the positioning wall is a vertical surface. The positioning head 424 can be rotated and limited by the positioning section 414. When the swing tube 20 rotates upward 90° to reset, the positioning head 424 contacts the positioning wall, and the positioning head 424 is limited by the positioning wall, so that the swing tube 20 stops after moving upward and rotating 90°, avoiding the guide block 421 from falling out of the guide notch 411, and ensuring that the guide wall 412 and the sliding wall 422 can always be effectively in contact.

[0049] The above are only preferred embodiments of the present invention. Any simple modification, deformation and equivalent replacement made by anyone to the present invention according to the content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A rotary joint for connecting two pipes connected in an upper and lower manner, characterized in that: include: A fixing sleeve (41) is fixed to the top of the lower tube body, and a guide notch (411) opening upward is provided on a side wall of the fixing sleeve (41), and a side wall of the guide notch (411) is a spiral guide wall (412); A rotating sleeve (42) is fixed on the upper tube body, the rotating sleeve (42) has a downward guide block (421), the guide block (421) has a sliding wall (422) matched with the guide wall (412), and can be embedded in the guide notch (411); and The locking handle (43) is vertically arranged, and its middle part is rotatably fixed on the fixing sleeve (41) through a horizontal rotating shaft. The upper end of the locking handle (43) is located above the guide wall (412) and is buckled inwardly under the action of a torsion spring, so as to limit the guide block (421) from sliding downward into the guide notch (411).

2. The rotary joint according to claim 1, characterized in that: The fixed sleeve (41) has a positioning notch (413) on its side wall, one side wall of the positioning notch (413) is a spiral positioning wall, the spiral direction of the positioning wall is the same as that of the guide wall (412), and the upper end of the positioning wall has a vertically upward positioning section (414); the rotating sleeve (42) has a downward positioning block (423), the positioning block (423) can be embedded in the positioning notch (413), and the lower end of the positioning block has a positioning head (424), and the side of the positioning head (424) facing the positioning wall is a vertical surface.

3. The rotary joint according to claim 2, characterized in that: After the rotating sleeve (42) rotates 90 degrees, the positioning head (424) is rotationally limited by the positioning section (414).

4. The rotary joint according to claim 1, characterized in that: The upper end of the locking handle (43) abuts against the outer wall of the upper tube body to limit the guide block (421) from sliding downward into the guide notch (411).

5. The rotary joint according to claim 1, characterized in that: After the guide block (421) is embedded in the guide notch (411), the upper top surface of the fixed sleeve (41) contacts the lower bottom surface of the rotating sleeve (42).

6. The rotary joint according to claim 1, characterized in that: The rotary joint (40) is provided with a protective jacket for protecting the fixed sleeve (41) and the rotating sleeve (42); the protective jacket is detachably fixed to the vertical pipe (10); the rotating sleeve (42) can rotate inside the protective jacket; and the protective jacket has a window for exposing the locking handle (43).

7. A spray eyewash, comprising a spray eyewash body, characterized in that: Also include a waste liquid recovery device, the waste liquid recovery device includes: A standpipe (10) having a closed bottom end and a base fixed thereto for supporting it, the bottom of the standpipe (10) being connected to a drain pipe of an eyewash basin in the spray eyewash; A swing pipe (20) having an upper pipe section (21) extending vertically upward at one end and a lower pipe section (22) extending vertically downward at the other end, wherein the lower pipe section (22) is inserted into the vertical pipe (10); and A water receiving tray (30) is fixed to the upper end of the upper pipe section (21) and is in communication with the upper pipe section (21); The vertical pipe (10) and the swing pipe (20) are connected via a rotary joint (40) according to any one of claims 1 to 6, the fixed sleeve (41) is fixed to the top of the vertical pipe (10), and the rotary sleeve (42) is fixed to the lower pipe section (22).

8. The spray eyewash according to claim 7, characterized in that: The water receiving tray (30) is funnel-shaped.

9. The spray eyewash according to claim 7, characterized in that: The length of the swing pipe (20) inserted downward into the vertical pipe (10) is 5 to 20 cm.

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