Connecting pipe replacing mechanism of laser dust particle counter

Abstract

The utility model discloses a connecting pipe replacement mechanism of laser dust particle counter, including device body, sampling mouth and pipe body, the sampling mouth is through the threaded connection with the screw hole on the disk, and the lateral wall of disk and the lateral wall of pipe body abut against each other, the device body is equipped with the limit piece that limits the disk. According to the utility model, the handle is rotated, so that the fixed rod is in threaded connection with the through hole, the position of the clamping block is fixed, the clamping block cannot move to be clamped with the clamping groove under the elastic force of the spring, the disc is rotated, and the disc pushes the tube body to be separated from the sampling port during rotation, so that the tube body is detached; a worker can complete separation of the pipe body and the sampling port without pulling the pipe body, so that convenience is achieved, and breakage caused by pulling when a traditional pipe body is separated from the sampling port is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of particle counters, in particular to a connecting pipe replacement mechanism of a laser dust particle counter. Background Art

[0002] The sampling port cover of the laser dust particle counter is equipped with a rubber connecting tube. Therefore, when removing the connecting tube, the staff needs to pull the connecting tube hard to separate the connecting tube from the sampling port. When the connecting tube is disassembled and assembled multiple times, the life of the connecting tube will be reduced, and the connecting tube will be pulled and broken during disassembly.

[0003] Therefore, it is necessary to improve the traditional connection pipe replacement method to extend the life of the connection pipe as much as possible. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problem and provides a connecting pipe replacement mechanism for a laser dust particle counter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The connecting tube replacement mechanism of the laser dust particle counter comprises a device body, a sampling port and a tube body, wherein the sampling port is connected to a screw hole provided on a disc through threads, and the side wall of the disc abuts against the side wall of the tube body, and a limiting member for limiting the position of the disc is provided on the device body.

[0007] Preferably, the limiting member comprises a through hole formed on a disc, and the through hole is slidably connected to the slide rod, and a slot is formed on the device body.

[0008] Preferably, a fixing rod threadedly connected to the through hole is fixed to the end of the sliding rod, and a clamping block is fixed to the end of the fixing rod, and the clamping block extends into the clamping slot during movement.

[0009] Preferably, a handle is fixed on the slide bar, and when the handle abuts against the side wall of the disc, the clamping block is engaged with the clamping groove.

[0010] Preferably, a screw groove is formed on the disc, and a screw rod is connected to the screw groove through a thread, and a blocking rod in contact with the outer wall of the tube body is fixed on the screw rod.

[0011] Preferably, a spring is sleeved on the sliding rod and the fixing rod, and one end of the spring abuts against the block, and the other end abuts against the disc.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The present application rotates the handle so that the fixing rod is connected to the through hole through a thread. At this time, the position of the card block is fixed, and the card block cannot move to engage with the card slot under the elastic force of the spring. The disc is rotated, and the disc pushes the tube body to detach from the sampling port during rotation, thereby completing the disassembly of the tube body. The staff does not need to pull the tube body to separate the tube body from the sampling port, which is more convenient and effectively avoids the rupture caused by pulling when the traditional tube body is separated from the sampling port.

[0014] 2. In the present application, when the tube body is separated from the sampling port, the tube body is effectively prevented from wrinkling under the action of the blocking rod. Therefore, the tube body will not be excessively deformed when it is separated from the sampling port. That is, when the disc pushes the tube body to separate from the sampling port, the tube body will not be wrinkled or deformed, and the tube body can be separated from the sampling port faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a counter and a connecting pipe according to an embodiment of the utility model is shown;

[0016] Figure 2 A schematic diagram of the structure of a counter according to an embodiment of the present utility model is shown;

[0017] Figure 3 A schematic diagram of the structure of a disc portion provided according to an embodiment of the utility model is shown.

[0018] Legend:

[0019] 1. Body; 2. Sampling port; 3. Card slot; 4. Disc; 5. Screw hole; 6. Through hole; 7. Slide rod; 8. Fixing rod; 9. Block; 10. Handle; 11. Spring; 12. Screw groove; 13. Screw rod; 14. Stop rod; 15. Tube body. DETAILED DESCRIPTION

[0020] 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 of 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. Example

[0021] The utility model provides a technical solution, please refer to Figure 1-3 :

[0022] The connecting tube replacement mechanism of the laser dust particle counter includes a body 1, a sampling port 2 and a tube body 15, and is characterized in that the sampling port 2 is connected to the screw hole 5 opened on the disk 4 by threads, and the side wall of the disk 4 abuts against the side wall of the tube body 15, and the body 1 is provided with a limiter for limiting the position of the disk 4. A screw groove 12 is opened on the disk 4, and the screw groove 12 is connected to a screw rod 13 by threads, and a stopper 14 in contact with the outer wall of the tube body 15 is fixed on the screw rod 13. Under the action of the stopper 14, the disk 4 can push the tube body 15 to separate from the sampling port 2 when it moves at the sampling port 2, and when the tube body 15 is separated from the sampling port 2, the tube body 15 is effectively prevented from wrinkling under the action of the stopper 14, so that the tube body 15 will not be excessively deformed when it is separated from the sampling port 2. Example

[0023] The technical solution is basically the same as that of the first embodiment, except that Figure 3 As shown, the limiting member includes a through hole 6 provided on the disk 4, and the through hole 6 is slidably connected to the slide rod 7, and a card slot 3 is provided on the body 1. A fixing rod 8 is fixed to the end of the slide rod 7 and is connected to the through hole 6 by a thread, and a card block 9 is fixed to the end of the fixing rod 8, and the card block 9 extends into the card slot 3 during movement. A handle 10 is fixed to the slide rod 7, and when the handle 10 abuts against the side wall of the disk 4, the card block 9 engages with the card slot 3. A spring 11 is sleeved on the slide rod 7 and the fixing rod 8, and one end of the spring 11 abuts against the card block 9, and the other end abuts against the disk 4. Under the elastic force of the spring 11, the card block 9 can be caused to extend into the card slot 3, thereby limiting the disk 4, so that the disk 4 cannot be rotated under force at this time.

[0024] In summary, when disassembling and replacing the tube body 15 provided in this embodiment, the handle 10 is pulled to disengage the block 9 from the slot 3, the spring 11 is compressed, and then the handle 10 is rotated to connect the fixing rod 8 with the through hole 6 through threads. At this time, the block 9 is fixed in position, and the block 9 cannot move to engage with the slot 3 under the elastic force of the spring 11. Then the disc 4 can be rotated, and the disc 4 pushes the tube body 15 to disengage from the sampling port 2 during rotation, and the disassembly of the tube body 15 is completed.

[0025] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting tube replacement mechanism for a laser dust particle counter, comprising a device body (1), a sampling port (2) and a tube body (15), characterized in that: The sampling port (2) is connected to a screw hole (5) provided on the disc (4) via a threaded connection, and the side wall of the disc (4) abuts against the side wall of the tube body (15). A limiting member for limiting the position of the disc (4) is provided on the device body (1).

2. The connecting tube replacement mechanism of the laser dust particle counter according to claim 1, characterized in that: The limiting member comprises a through hole (6) formed on the disc (4), and the through hole (6) is slidably connected to the slide rod (7), and a clamping groove (3) is formed on the device body (1).

3. The connecting pipe replacement mechanism of the laser dust particle counter according to claim 2, characterized in that: A fixing rod (8) threadedly connected to the through hole (6) is fixed to the end of the sliding rod (7), and a clamping block (9) is fixed to the end of the fixing rod (8), and the clamping block (9) extends into the clamping slot (3) during movement.

4. The connecting tube replacement mechanism of the laser dust particle counter according to claim 3 is characterized in that: A handle (10) is fixed on the slide bar (7), and when the handle (10) abuts against the side wall of the disc (4), the clamping block (9) is clamped with the clamping groove (3).

5. The connecting tube replacement mechanism of the laser dust particle counter according to claim 1, characterized in that: The disc (4) is provided with a screw groove (12), and the screw groove (12) is connected to a screw rod (13) via a thread, and a stop rod (14) in contact with the outer wall of the tube body (15) is fixed to the screw rod (13).

6. The connecting tube replacement mechanism of the laser dust particle counter according to claim 3, characterized in that: A spring (11) is sleeved on the sliding rod (7) and the fixing rod (8), and one end of the spring (11) abuts against the clamping block (9), and the other end abuts against the disc (4).

Images