Vacuum pump switching device

Abstract

The utility model relates to the technical field of vacuum pump switching, in particular to a vacuum pump switching device. According to the technical scheme, the device comprises a vacuum pump exhaust pipe and various adapters, an insertion head is fixed to the front end of the vacuum pump exhaust pipe, a base is fixed to the periphery of the joint of the insertion head and the vacuum pump exhaust pipe, a side opening is formed in the side wall of the insertion head, a switching disc is installed on the front side of the base, and a center hole is formed in the center of the switching disc; the inserting head is inserted into the center hole and is rotationally connected with the switching disc, the various adapter heads are fixed to the front side of the switching disc at equal intervals, and connecting channels are formed between the various adapter heads and the side wall of the center hole. According to the utility model, various adapters are arranged at the front end of the exhaust pipe of the vacuum pump, so that the specified various adapters can be connected with the exhaust pipe of the vacuum pump by utilizing the rotation of the switching disc, and when different devices are butted, quick switching can be realized, and the practicability of the devices is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump switching, in particular to a vacuum pump switching device. Background Art

[0002] A vacuum pump adapter is an accessory or device used to connect a vacuum pump to other equipment or systems for vacuum extraction. It is usually used in laboratories, industrial production, scientific research and other fields to help create or maintain an airless or low-pressure environment.

[0003] The pipes and joints used to connect the vacuum pump to the experimental equipment or system need to ensure good sealing to prevent air leakage. When connecting the joints of different equipment, the adaptability of the connector is very important. It is necessary to adjust the different joints, such as the diameter and length of the joints, to achieve perfect docking and reduce the risk of leakage. The common vacuum pump external joints only have a single joint. When connecting different equipment, disassembly, assembly and replacement are required, which is relatively troublesome and reduces the practicality of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum pump adapter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a vacuum pump exhaust pipe and a variety of adapters, an insertion head is fixed on the front end of the vacuum pump exhaust pipe, a base is fixed on the periphery of the connection between the insertion head and the vacuum pump exhaust pipe, a side opening is opened on the side wall of the insertion head, a switching disk is installed on the front side of the base, a center hole is opened at the center position of the switching disk, the insertion head is inserted into the center hole and is rotatably connected to the switching disk, the various adapters are equidistantly fixed on the front side of the switching disk, connecting channels are opened between the various adapters and the side walls of the center hole, and a positioning assembly is arranged between the back of the switching disk and the base.

[0006] Preferably, the positioning assembly includes a rotating disk and a limit frame, the rotating disk is fixed on the outside of the base, the limit frame is fixed on the back of the switching disk, an adapting slot is provided in the limit frame, the rotating disk is rotatably connected in the adapting slot, a positioning slot is provided at the opening of the adapting slot, the positioning slots correspond one-to-one to the various adapters, and a pair of positioning columns are slidably connected to the back of the rotating disk, and the positioning columns are inserted into the positioning slots.

[0007] Preferably, a telescopic slot is provided in the rotating disk at a position corresponding to the positioning column, a telescopic block is slidably connected in the telescopic slot, an outer side of the telescopic block is fixed to the positioning column, and a telescopic spring is fixed between the side wall of the telescopic slot and the telescopic block.

[0008] Preferably, a guide rod is fixed in the telescopic groove, and the guide rod passes through the telescopic block and is slidably connected to the telescopic block.

[0009] Preferably, an airtight pad is fixed to the outer side wall of the insertion head.

[0010] Preferably, an anti-dropping block is fixed to the front end of the insertion head.

[0011] Compared with the prior art, the beneficial effect of the utility model is that a variety of adapters are arranged at the front end of the vacuum pump exhaust pipe, and the designated variety of adapters can be connected to the vacuum pump exhaust pipe by rotating the switching disk. When docking different devices, they can be switched quickly, thereby increasing the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the combined structure of an insertion head and a switching disk of a vacuum pump adapter device of the utility model;

[0013] Figure 2 This is a schematic diagram of the appearance structure of a limit frame of a vacuum pump adapter device of the utility model;

[0014] Figure 3 The utility model is a vacuum pump adapter Figure 1 The enlarged structural diagram at A in the middle;

[0015] Figure 4 The utility model is a schematic diagram of the front end appearance structure of a switching disk of a vacuum pump adapter device.

[0016] In the figure: 1. vacuum pump exhaust pipe; 11. base; 12. insertion head; 13. side opening; 14. airtight pad; 15. anti-drop block; 2. various adapters; 3. switching disk; 31. center hole; 32. connecting channel; 4. limit frame; 41. adapter slot; 42. positioning slot; 5. rotating disk; 51. positioning column; 52. telescopic slot; 53. telescopic block; 54. telescopic spring; 55. guide rod. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4The utility model provides a technical solution: it includes a vacuum pump exhaust pipe 1 and a variety of adapters 2, an insertion head 12 is fixed at the front end of the vacuum pump exhaust pipe 1, a base 11 is fixed at the periphery of the connection between the insertion head 12 and the vacuum pump exhaust pipe 1, a side opening 13 is opened on the side wall of the insertion head 12, a switching disk 3 is installed on the front side of the base 11, a center hole 31 is opened at the center position of the switching disk 3, the insertion head 12 is inserted into the center hole 31 and is rotatably connected to the switching disk 3, the variety of adapters 2 are equidistantly fixed on the front side of the switching disk 3, connecting channels 32 are opened between the variety of adapters 2 and the side walls of the center hole 31, a positioning component is arranged between the back of the switching disk 3 and the base 11, an airtight pad 14 is fixed on the outer side wall of the insertion head 12, and an anti-dropping block 15 is fixed on the front end of the insertion head 12.

[0019] The positioning assembly includes a rotating disk 5 and a limit frame 4. The rotating disk 5 is fixed on the outside of the base 11, and the limit frame 4 is fixed on the back of the switching disk 3. An adapting groove 41 is provided in the limit frame 4. The rotating disk 5 is rotatably connected in the adapting groove 41. A positioning groove 42 is provided at the opening of the adapting groove 41. The positioning groove 42 corresponds to the multi-adapter 2 one by one. A pair of positioning posts 51 are slidably connected to the back of the rotating disk 5. The positioning posts 51 are inserted into the positioning groove 42. A telescopic groove 52 is provided in the rotating disk 5 at a position corresponding to the positioning post 51. A telescopic block 53 is slidably connected in the telescopic groove 52. The outer side of the telescopic block 53 is fixed to the positioning post 51. A telescopic spring 54 is fixed between the side wall of the telescopic groove 52 and the telescopic block 53. A guide rod 55 is fixed in the telescopic groove 52. The guide rod 55 passes through the telescopic block 53 and is slidably connected to the telescopic block 53.

[0020] Working principle: By rotating the switching disk 3, the designated connection channel 32 can be aligned with the side opening 13, so that the multi-adapter 2 at this position can be connected to the vacuum pump exhaust pipe 1. When connecting different devices to the vacuum pump, the corresponding multi-adapter 2 can be selected according to the connector specifications on the device, which increases the practicality of the device and allows faster connection of different devices. When rotating the switching disk 3, it is necessary to squeeze the positioning column 51, and when the telescopic spring 54 is stretched, it slides on the back of the rotating disk 5, and finally the positioning column 51 is moved from The switch disk 3 can be pulled out from the positioning groove 42 to ensure that the switch disk 3 can rotate freely. Conversely, after rotating to the specified position, the positioning column 51 can be reinserted into the positioning groove 42 by resetting the telescopic spring 54 to complete the fixation of the position of the rotating disk 5. The operation is simple and convenient. The guide rod 55 can increase the stability of the telescopic block 53 sliding in the telescopic groove 52. The airtight pad 14 can ensure the sealing of the connection between the side wall of the center hole 31 and the outer wall of the insertion head 12 to prevent gas from overflowing. At the same time, the anti-drop block 15 can prevent the insertion head 12 from being pulled out of the center hole 31.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] 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 vacuum pump adapter device, comprising a vacuum pump exhaust pipe (1) and a multiple adapter (2), characterized in that: An insertion head (12) is fixed at the front end of the vacuum pump exhaust pipe (1), and a base (11) is fixed at the periphery of the connection between the insertion head (12) and the vacuum pump exhaust pipe (1). A side opening (13) is provided on the side wall of the insertion head (12). A switching disk (3) is installed on the front side of the base (11). A center hole (31) is provided at the center position of the switching disk (3). The insertion head (12) is inserted into the center hole (31) and is rotatably connected to the switching disk (3). The various adapters (2) are equidistantly fixed on the front side of the switching disk (3). Connection channels (32) are provided between the various adapters (2) and the side walls of the center hole (31). A positioning component is provided between the back of the switching disk (3) and the base (11).

2. A vacuum pump adapter according to claim 1, characterized in that: The positioning assembly comprises a rotating disk (5) and a limiting frame (4); the rotating disk (5) is fixed on the outside of the base (11); the limiting frame (4) is fixed on the back of the switching disk (3); an adapting groove (41) is provided in the limiting frame (4); the rotating disk (5) is rotatably connected in the adapting groove (41); a positioning groove (42) is provided at the opening of the adapting groove (41); the positioning groove (42) corresponds to the multi-adapter (2) one by one; a pair of positioning posts (51) are slidably connected to the back of the rotating disk (5); the positioning posts (51) are inserted into the positioning grooves (42).

3. A vacuum pump adapter according to claim 2, characterized in that: A telescopic groove (52) is provided in the rotating disk (5) at a position corresponding to the positioning column (51), a telescopic block (53) is slidably connected in the telescopic groove (52), the outer side of the telescopic block (53) is fixed to the positioning column (51), and a telescopic spring (54) is fixed between the side wall of the telescopic groove (52) and the telescopic block (53).

4. A vacuum pump adapter according to claim 3, characterized in that: A guide rod (55) is fixed in the telescopic groove (52), and the guide rod (55) passes through the telescopic block (53) and is slidably connected to the telescopic block (53).

5. A vacuum pump adapter according to claim 1, characterized in that: An airtight pad (14) is fixed to the outer side wall of the insertion head (12).

6. A vacuum pump adapter according to claim 1, characterized in that: An anti-dropping block (15) is fixed to the front end of the insertion head (12).

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