CN216131170U

CN216131170U - Boosting cylinder

Info

Publication number: CN216131170U
Application number: CN202121574638.8U
Authority: CN
Inventors: 朱建松
Original assignee: Ningbo Weiman Intelligent Technology Co ltd
Current assignee: Ningbo Weiman Intelligent Technology Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-03-25
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a force multiplication air cylinder which comprises a cylinder barrel, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are arranged at two ends of the cylinder barrel, a piston rod assembly is further arranged in the cylinder barrel, the cylinder barrel is divided into a first cavity and a second cavity by the piston rod assembly, the front end cover is provided with a first air passage communicated with the first cavity, the rear end cover is provided with a second air passage communicated with the second cavity, an air receiving nozzle is arranged on the front end cover, a first air transmission channel is arranged in the air receiving nozzle, and the first air transmission channel is communicated with the first air passage; the rear end cover is provided with a mounting block, a second air transmission channel and a third air transmission channel are formed in the mounting block, and the third air transmission channel is communicated with the second air channel; a vent pipe is arranged between the air receiving nozzle and the mounting block, and the first air transmission channel and the second air transmission channel are communicated through the vent pipe. The utility model has the following advantages and effects: the mode of centralized gas supply of the rear end cover is adopted, the device is suitable for the condition that the mounting positions of a skylight and the like are limited, and the device has the effects of strong applicability and convenience in mounting.

Description

Boosting cylinder

Technical Field

The utility model relates to the technical field of cylinders, in particular to a force multiplication cylinder.

Background

The cylinder is a common driving device and mainly comprises a single-acting cylinder, a double-acting cylinder, a diaphragm type cylinder, an impact cylinder and a rodless cylinder.

Present doubly power cylinder, it is main including the cylinder, set up in the front end housing and the rear end cap of cylinder tip, be provided with piston and piston rod in the cylinder, the piston separates into with the cylinder inner chamber has pole chamber and no pole chamber, the front end housing is seted up and is fed through in the first air flue that has the pole chamber, the second air flue that feeds through in no pole chamber is seted up to the rear end cap, the entry that first air flue and second played all is provided with and connects the air cock, connect the air cock all to stretch out to both sides, during the use, the trachea is connected on connecting the air cock. However, in some special use cases, such as a skylight cylinder, because the installation space is limited, the side edges of the cylinder are not suitable for connecting an air pipe, otherwise, the opening and closing of the skylight are easily hindered, and therefore, a cylinder with a centralized air supply function by a rear end cover is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-force air cylinder which adopts a rear end cover centralized air supply mode and has the effects of strong applicability and convenience in installation.

The technical purpose of the utility model is realized by the following technical scheme: a force multiplication cylinder comprises a cylinder barrel, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are arranged at two ends of the cylinder barrel, a piston rod assembly is further arranged in the cylinder barrel and divides the cylinder barrel into a first cavity and a second cavity, the front end cover is provided with a first air passage communicated with the first cavity, the rear end cover is provided with a second air passage communicated with the second cavity, an air receiving nozzle is arranged on the front end cover, a first air conveying channel is arranged in the air receiving nozzle, and the first air conveying channel is communicated with the first air passage; the rear end cover is provided with a mounting block, a second air transmission channel and a third air transmission channel are formed in the mounting block, and the third air transmission channel is communicated with the second air channel; a vent pipe is arranged between the air receiving nozzle and the mounting block, and the first air transmission channel and the second air transmission channel are communicated through the vent pipe.

Through adopting above-mentioned technical scheme, in the use, outside air feed part all communicates in the second gas transmission passageway and the third gas transmission passageway of rear end cap, through third gas transmission passageway through second air flue to the second cavity in gas transmission, promotes the motion of piston rod assembly for piston rod assembly stretches out, when needs piston rod assembly resets, through second gas transmission passageway in proper order through gas pipe and first air flue to first cavity in gas transmission, can make piston rod assembly reverse motion realize resetting. Therefore, the utility model adopts a mode of centralized gas supply at the rear end cover, can be suitable for the condition that the mounting position of a skylight and the like is limited, and has the effects of strong applicability and convenient mounting.

The utility model is further provided with: the passage port of the second gas transmission passage of the mounting block and the passage port of the first gas transmission passage of the gas connecting nozzle are positioned on the same side, and the passage port of the second gas transmission passage and the passage port of the first gas transmission passage are arranged in opposite directions.

Through adopting above-mentioned technical scheme, set up the passway mouth of second gas transmission passageway and first gas transmission passageway in homonymy and setting in opposite directions, have simple to operate's effect.

The utility model is further provided with: the piston rod assembly is arranged into a double rod and comprises a first piston rod group and a second piston rod group, and the first piston rod group and the second piston rod group are coaxially arranged.

Through adopting above-mentioned technical scheme, adopt the mode of two poles for the cylinder has stronger thrust.

The utility model is further provided with: the first piston rod group is correspondingly arranged in the first cavity, and the second piston rod group is correspondingly arranged in the second cavity; the first piston rod group comprises a first piston rod and a first piston, the second piston rod group comprises a second piston rod and a second piston, the first piston rod extends out of the cylinder barrel, and the second piston rod is fixedly connected with the first piston.

The utility model is further provided with: the cylinder barrel comprises a first cylinder barrel, a second cylinder barrel and a sleeve which are coaxially arranged, the end parts of the sleeve are respectively and correspondingly connected to the first cylinder barrel and the second cylinder barrel, a second piston rod is in sealing fit with the sleeve, and the side wall of the sleeve is provided with a balance hole communicated with the inner cavity of the sleeve.

Through adopting above-mentioned technical scheme, when first piston rod group and second piston rod group moved, the gaseous accessible balancing hole business turn over in the sleeve for the sleeve internal gas pressure keeps balance with the external world all the time.

The utility model is further provided with: an annular caulking groove is formed in the inner wall of the sleeve, a sealing ring is arranged in the annular caulking groove, and the sealing ring is in sealing fit with the outer wall of the second piston rod, so that a balance cavity is formed between the sleeve and the first piston.

The utility model is further provided with: external threads are arranged at two ends of the sleeve, internal threads are arranged on the inner walls of the first cylinder barrel and the second cylinder barrel, and the sleeve is in threaded connection with the first cylinder barrel and the second cylinder barrel.

Through adopting above-mentioned technical scheme, the sleeve passes through threaded connection's mode and links to each other with first cylinder and second cylinder, has higher leakproofness on the one hand, and on the other hand the installation is also more convenient.

In conclusion, the utility model has the following beneficial effects:

1. the mode of centralized gas supply of the rear end cover is adopted, so that the device is suitable for the condition that the mounting positions of a skylight and the like are limited, and has the effects of strong applicability and convenience in mounting;

2. the channel openings of the second gas transmission channel and the first gas transmission channel are arranged on the same side and are arranged oppositely, so that the effect of convenient installation is achieved;

3. the mode of arranging the balance hole on the side wall of the sleeve is adopted, so that the air pressure in the sleeve is always kept balanced with the outside.

Drawings

Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.

Fig. 2 is a top view of the embodiment.

Fig. 3 is a sectional view of section a-a in fig. 2.

Fig. 4 is an enlarged view of the region B in fig. 3.

In the figure: 1. a cylinder barrel; 11. a first cylinder; 111. a first chamber; 12. a second cylinder; 121. a second chamber; 13. a sleeve; 131. an annular caulking groove; 132. a balance hole; 2. a front end cover; 21. connecting an air faucet; 211. a first gas transmission channel; 3. a rear end cap; 31. a second air passage; 4. a piston rod assembly; 41. a first piston rod; 42. a first piston; 43. a second piston rod; 44. a second piston; 5. mounting blocks; 51. a second gas transmission channel; 52. a third gas transmission channel; 6. a breather pipe; 7. and (5) sealing rings.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

A multiple force cylinder is shown in figures 1-3 and comprises a cylinder barrel 1, a front end cover 2 and a rear end cover 3, wherein the front end cover 2 and the rear end cover 3 are arranged at two ends of the cylinder barrel 1, a piston rod assembly 4 is further arranged in the cylinder barrel 1, the cylinder barrel 1 is divided into a first cavity 111 and a second cavity 121 by the piston rod assembly 4, the front end cover 2 is provided with a first air passage (not shown in the figure) communicated with the first cavity 111, and the rear end cover 3 is provided with a second air passage 31 communicated with the second cavity 121.

As shown in fig. 3, the front end cap 2 is provided with an air nozzle 21, a first air transmission channel 211 is formed in the air nozzle 21, and the first air transmission channel 211 is communicated with the first air passage; the rear end cover 3 is provided with a mounting block 5, the mounting block 5 is provided with a second gas transmission channel 51 and a third gas transmission channel 52, the third gas transmission channel 52 is communicated with the second gas passage 31, a channel port of the second gas transmission channel 51 of the mounting block 5 and a channel port of the first gas transmission channel 211 of the air receiving nozzle 21 are positioned on the same side, and the channel port of the second gas transmission channel 51 and the channel port of the first gas transmission channel 211 are arranged oppositely; a vent pipe 6 is arranged between the air receiving nozzle 21 and the mounting block 5, and the first air transmission channel 211 and the second air transmission channel 51 are communicated through the vent pipe 6. The passage openings of the second gas transmission passage 51 and the first gas transmission passage 211 are arranged on the same side and opposite to each other, so that the installation is convenient.

As shown in fig. 3 and 4, the piston rod assembly 4 is provided as a double rod, the piston rod assembly 4 includes a first piston rod group and a second piston rod group, the first piston rod group and the second piston rod group are coaxially provided, and the double rod mode is adopted, so that the cylinder has a stronger thrust. The first piston rod group is correspondingly arranged in the first chamber 111, and the second piston rod group is correspondingly arranged in the second chamber 121; the first piston rod group comprises a first piston rod 41 and a first piston 42, the second piston rod group comprises a second piston rod 43 and a second piston 44, the front end of the first piston rod 41 extends out of the cylinder barrel 1, the front end of the second piston rod 43 is fixedly connected with the first piston 42, and the first piston 42 and the second piston 44 are in sealing fit with the inner wall of the cylinder barrel 1.

As shown in fig. 3 and 4, the cylinder barrel 1 includes a first cylinder barrel 11, a second cylinder barrel 12 and a sleeve 13 which are coaxially disposed, ends of the sleeve 13 are respectively and correspondingly connected to the first cylinder barrel 11 and the second cylinder barrel 12, the second piston rod 43 is in sealing fit with the sleeve 13, an annular caulking groove 131 is formed in an inner wall of the sleeve 13, a sealing ring 7 is disposed in the annular caulking groove 131, the sealing ring 7 is in sealing fit with an outer wall of the second piston rod 43, so that a balance cavity is formed between the sleeve 13 and the first piston 42, and a balance hole 132 communicated with the balance cavity is formed in a side wall of the sleeve 13. When the first piston rod group and the second piston rod group move, the gas in the sleeve 13 can enter and exit through the balance hole 132, so that the gas pressure in the sleeve 13 is always balanced with the outside. The both ends of sleeve 13 are provided with the external screw thread, and first cylinder 11 and second cylinder 12 inner wall all are provided with the internal thread, sleeve 13 and first cylinder 11, second cylinder 12 threaded connection. The sleeve 13 is connected with the first cylinder 11 and the second cylinder 12 in a threaded connection mode, so that on one hand, the sealing performance is high, and on the other hand, the installation is convenient.

The basic working principle of the utility model is as follows: in the use, outside air feed part all communicates in second gas transmission channel 51 and the third gas transmission channel 52 of rear end cover 3, through third gas transmission channel 52 through second air flue 31 to second cavity 121 in gas transmission, promote piston rod assembly 4 motion, make piston rod assembly 4 stretch out, when needing piston rod assembly 4 to reset, through second gas transmission channel 51 in proper order through gas transmission pipe 6 and first air flue to first cavity 111 in gas transmission, can make piston rod assembly 4 reverse motion realize resetting. Therefore, the utility model adopts a centralized gas supply mode at the rear end cover 3, is suitable for the condition that the installation position of a skylight and the like is limited, and has the effects of strong applicability and convenient installation.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a power-multiplying cylinder, including cylinder (1), locate front end housing (2) and rear end cap (3) at cylinder (1) both ends, still be equipped with piston rod subassembly (4) in cylinder (1), piston rod subassembly (4) will cylinder (1) is separated for first cavity (111) and second cavity (121), front end housing (2) seted up communicate in the first air flue of first cavity (111), rear end cap (3) seted up communicate in second air flue (31) of second cavity (121), its characterized in that: the front end cover (2) is provided with an air connecting nozzle (21), a first air transmission channel (211) is formed in the air connecting nozzle (21), and the first air transmission channel (211) is communicated with the first air passage; the rear end cover (3) is provided with a mounting block (5), the mounting block (5) is provided with a second gas transmission channel (51) and a third gas transmission channel (52), and the third gas transmission channel (52) is communicated with the second gas channel (31); a vent pipe (6) is arranged between the air receiving nozzle (21) and the mounting block (5), and the first air transmission channel (211) is communicated with the second air transmission channel (51) through the vent pipe (6).

2. A multiple force cylinder according to claim 1, wherein: the passage opening of the second gas transmission passage (51) of the mounting block (5) and the passage opening of the first gas transmission passage (211) of the gas receiving nozzle (21) are located on the same side, and the passage opening of the second gas transmission passage (51) and the passage opening of the first gas transmission passage (211) are oppositely arranged.

3. A multiple force cylinder according to claim 1, wherein: the piston rod assembly (4) is arranged to be a double rod, the piston rod assembly (4) comprises a first piston rod group and a second piston rod group, and the first piston rod group and the second piston rod group are coaxially arranged.

4. A multiple force cylinder according to claim 3, wherein: the first piston rod group is correspondingly arranged in the first chamber (111), and the second piston rod group is correspondingly arranged in the second chamber (121); the first piston rod group comprises a first piston rod (41) and a first piston (42), the second piston rod group comprises a second piston rod (43) and a second piston (44), the first piston rod (41) extends out of the cylinder barrel (1), and the second piston rod (43) is fixedly connected with the first piston (42).

5. A multiple force cylinder according to claim 4, wherein: the cylinder barrel (1) comprises a first cylinder barrel (11), a second cylinder barrel (12) and a sleeve (13) which are coaxially arranged, the end parts of the sleeve (13) are correspondingly connected to the first cylinder barrel (11) and the second cylinder barrel (12) respectively, a second piston rod (43) is in sealing fit with the sleeve (13), and a balance hole (132) communicated with the inner cavity of the sleeve (13) is formed in the side wall of the sleeve (13).

6. A multiple force cylinder according to claim 5, wherein: an annular caulking groove (131) is formed in the inner wall of the sleeve (13), a sealing ring (7) is arranged in the annular caulking groove (131), and the sealing ring (7) is in sealing fit with the outer wall of the second piston rod (43), so that a balance cavity is formed between the sleeve (13) and the first piston (42).

7. A multiple force cylinder according to claim 5, wherein: the two ends of the sleeve (13) are provided with external threads, the inner walls of the first cylinder barrel (11) and the second cylinder barrel (12) are provided with internal threads, and the sleeve (13) is in threaded connection with the first cylinder barrel (11) and the second cylinder barrel (12).