Double-rod air cylinder shell

Abstract

The utility model provides a double-rod air cylinder shell which comprises a long cylinder shell, a short cylinder shell communicated with the long cylinder shell is installed on one face of the long cylinder shell, four limiting holes are evenly formed in one face of the long cylinder shell, penetrating holes penetrating through the long cylinder shell are formed in the tops in the limiting holes, and limiting heads are inserted in the limiting holes. A pull rod is installed on one face of the limiting head, the end, away from the limiting head, of the pull rod penetrates through the penetrating hole and is in threaded connection with a first nut, two rows of small holes are formed in the two parallel side faces of the long cylinder shell, a plurality of positioning holes matched with the small holes are formed in the outer surface of the pull rod, and the long cylinder shell is sleeved with a first U-shaped cover and a second U-shaped cover. The inner surface of the first U-shaped cover and the inner surface of the second U-shaped cover are each provided with two rows of positioning rods matched with the small holes, the positioning rods penetrate through the small holes and extend into the corresponding positioning holes, and the pull rod fixing device has the advantages that secondary reinforcement of the pull rod is achieved, and the structural stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double-rod cylinder shell and belongs to the field of cylinder accessories. BACKGROUND

[0002] The double-rod cylinder shell is one of cylinder accessories, and the structure formed by the long cylinder shell and the short cylinder shell is one of forms of the double-rod cylinder shell. Four through holes for inserting pull rods are formed on the long cylinder shell, one end of each pull rod is connected with a limiting head, and the other end of each pull rod is threadedly connected with a nut. The limiting head, the pull rod and the nut are matched to limit the relative position of the cylinder shell and the end cover. When the double-rod cylinder is used in a place with strong vibration, the pull rod and the nut may be loosened due to vibration. Since there is no structure for limiting the position of the pull rod, the double-rod cylinder structure is unstable. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims to provide a double-rod cylinder shell to solve the problems in the background art. The utility model realizes secondary reinforcement of the pull rod and improves the stability of the structure.

[0004] To achieve the above object, the utility model is implemented by the following technical scheme: a double-rod cylinder shell, comprising a long cylinder shell, one side of the long cylinder shell is provided with a short cylinder shell communicating with the long cylinder shell, four limiting holes are uniformly formed on one side of the long cylinder shell, a through hole penetrating the long cylinder shell is formed in the top of each limiting hole, a limiting head is inserted into each limiting hole, a pull rod is installed on one side of the limiting head, the end of the pull rod away from the limiting head penetrates the through hole and is threadedly connected with a first nut, two rows of small holes are formed on the two parallel sides of the long cylinder shell, the small holes communicate with the through hole, a plurality of positioning holes are formed on the outer surface of the pull rod and match the small holes, a first U-shaped cover and a second U-shaped cover are sleeved on the long cylinder shell, one end of the first U-shaped cover is inserted into one end of the second U-shaped cover, the other end of the first U-shaped cover is connected with the other end of the second U-shaped cover through a connecting piece, two rows of positioning rods matching the small holes are installed on the inner surfaces of the first U-shaped cover and the second U-shaped cover, and the positioning rods penetrate the small holes and extend into the corresponding positioning holes.

[0005] Further, the connecting piece comprises a first connecting lug, one end of the first U-shaped cover is connected with a first connecting lug, one end of the second U-shaped cover is connected with a second connecting lug matching the first connecting lug, and the first connecting lug is connected with the second connecting lug through a plurality of groups of fasteners formed by screws and second nuts.

[0006] Further, a first slotted hole is formed on one side of the first connecting lug, and a second slotted hole is formed on one side of the second connecting lug.

[0007] Further, the first U-shaped cover is connected with a plug plate at one end away from the first connecting lug, the second U-shaped cover is provided with a plug slot at one end away from the second connecting lug, and the plug plate is inserted into the plug slot.

[0008] Further, the first U-shaped cover is connected with a plug plate at one end away from the first connecting lug, the second U-shaped cover is provided with a plug slot at one end away from the second connecting lug, and the plug plate is inserted into the plug slot.

[0009] Further, the short cylinder shell is provided with a communication cavity at the bottom, and the communication cavity is communicated with the piston cavity in the short cylinder shell and the piston cavity in the long cylinder shell.

[0010] The utility model discloses beneficial effects:

[0011] 1, make the structure of first U-shaped cover, second U-shaped cover form and set up on long cylinder shell, then utilize screw and second nut to limit the relative position of first U-shaped cover and second U-shaped cover, positioning rod inserts in corresponding positioning hole at this time through small hole, the second reinforcing position that position limit of pull rod is added on long cylinder shell after first nut is removed at this time, improve the stability of structure, make double -rod cylinder to respond to the performance improvement of bad installation environment.

[0012] 2, the structure that first U-shaped cover and second U-shaped cover form together is wrapped on long cylinder shell after, still play to increase the role of long cylinder shell structural strength, be favorable to reducing the wall thickness of long cylinder shell under the condition of guaranteeing the mechanical property of long cylinder shell. DRAWINGS

[0013] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of a double-rod cylinder shell of the utility model;

[0015] Figure 2 It is a perspective view of one viewing angle of a double-rod cylinder shell of the utility model;

[0016] Figure 3 It is a perspective view of another viewing angle of a double-rod cylinder shell of the utility model;

[0017] Figure 4 It is an assembly schematic diagram of short cylinder shell and long cylinder shell in a double-rod cylinder shell of the utility model;

[0018] Figure 5 It is another viewing angle assembly schematic diagram of short cylinder shell and long cylinder shell in a double-rod cylinder shell of the utility model;

[0019] Figure 6The utility model discloses a double rod cylinder shell in positioning rod and the assembly drawing of first U type cover,

[0020] Figure 7 The utility model discloses a double rod cylinder shell in positioning rod and the assembly drawing of second U type cover,

[0021] Figure 8 The utility model discloses a double rod cylinder shell in limiting head and the assembly drawing of pull rod,

[0022] In the drawing, 1 is long cylinder shell, 2 is first strip groove, 3 is first U type cover, 4 is first nut, 5 is pull rod, 6 is second U type cover, 7 is short cylinder shell, 8 is first connecting lug, 9 is second strip groove, 10 is second nut, 11 is second connecting lug, 12 is limiting head, 13 is small hole, 14 is perforation, 15 is limiting hole, 16 is plugboard, 17 is positioning rod, 18 is first strip mouth, 19 is second strip mouth, 20 is insertion slot, 21 is positioning hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, the creation features, the purpose and the effect of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] Please refer to Figures 1-8The utility model provides a technical scheme: a double rod cylinder shell, including long cylinder shell 1, long cylinder shell 1 one side is equipped with with long cylinder shell 1 the short cylinder shell 7 of intercommunication, wherein short cylinder shell 7 bottom is equipped with the communicating chamber of intercommunication, communicating chamber with the piston cavity of short cylinder shell 7 inside and the piston cavity of long cylinder shell 1 inside intercommunication, long cylinder shell 1 one side is evenly equipped with four limit hole 15, and the perforation 14 of penetrating long cylinder shell 1 is equipped in the top of limit hole 15, and the limit head 12 of inserting is equipped in limit hole 15, and the pull rod 5 of installing is equipped in limit head 12 one side, and the first nut 4 of screwing is connected with the end of pull rod 5 far from limit head 12 and penetrates the perforation 14, and long cylinder shell 1 two parallel sides are all equipped with two rows of small holes 13, and small hole 13 is interconnected with the perforation 14, and the positioning hole 21 of cooperation with small hole 13 is set up on the outer surface of pull rod 5, and the first U type cover 3 and second U type cover 6 of setting are equipped on long cylinder shell 1, and the positioning rod 17 of cooperation with small hole 13 is installed in the inner surface of first U type cover 3 and second U type cover 6 inner surface two rows, and positioning rod 17 penetrates small hole 13 and extends to the corresponding positioning hole 21, make the structure of first U type cover 3, second U type cover 6 form and set up on long cylinder shell 1, then utilize screw and second nut 10 to limit the relative position of first U type cover 3 and second U type cover 6, positioning rod 17 passes through small hole 13 and inserts in the corresponding positioning hole 21 at this time, at this time, pull rod 5 removes the limit point of first nut 4, still increases the secondary reinforcement limit point of position restriction of pull rod 5 on long cylinder shell 1, improves the stability of structure, makes the performance of double rod cylinder to respond to the bad installation environment and improves, the structure of first U type cover 3 and second U type cover 6 collectively formed is wrapped on long cylinder shell 1, still plays the role of increasing the structural strength of long cylinder shell 1, is favorable in the case where guaranteeing the mechanical property of long cylinder shell 1 reduces the wall thickness of long cylinder shell 1.

[0025] Referring to Figure 2 、 Figure 6 and Figure 7The first U-shaped cover 3 and the second U-shaped cover 6 are inserted at one end, wherein the one end of the first U-shaped cover 3 away from the first connecting lug 8 is fixedly connected with an insertion plate 16, the one end of the second U-shaped cover 6 away from the second connecting lug 11 is provided with an insertion slot 20 matched with the insertion plate 16, so that the insertion plate 16 is inserted in the insertion slot 20, the one end of the first U-shaped cover 3 and the one end of the second U-shaped cover 6 form an insertion relationship, the one end of the first U-shaped cover 3 is fixedly connected with the first connecting lug 8, the one end of the second U-shaped cover 6 is fixedly connected with the second connecting lug 11 matched with the first connecting lug 8, the first connecting lug 8 is connected with the second connecting lug 11 through a plurality of fasteners formed by screws and second nuts 10, the first connecting lug 8 and the second connecting lug 11 are connected by the fasteners formed by the screws and the second nuts 10, which facilitates the disassembly of the first U-shaped cover 3 and the second U-shaped cover 6, a first bar-shaped opening 18 is provided on one side of the first connecting lug 8, and a second bar-shaped opening 19 is provided on one side of the second connecting lug 11, which reduces the production material quantity of the first connecting lug 8 and the second connecting lug 11, a plurality of first bar-shaped slots 2 are uniformly provided on the side of the first U-shaped cover 3 where the positioning rod 17 is installed, and a plurality of second bar-shaped slots 9 are uniformly provided on the side of the second U-shaped cover 6 where the positioning rod 17 is installed, which reduces the production material quantity of the first U-shaped cover 3 and the second U-shaped cover 6.

[0026] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A double-rod cylinder housing, comprising a long cylinder housing (1), characterized in that: The long cylinder shell (1) is provided with a short cylinder shell (7) in communication with the long cylinder shell (1) on one side, and four limiting holes (15) are evenly provided on one side of the long cylinder shell (1). A through hole (14) penetrating the long cylinder shell (1) is provided at the top of the limiting hole (15). A limiting head (12) is inserted in the limiting hole (15). A pull rod (5) is provided on one side of the limiting head (12). One end of the pull rod (5) away from the limiting head (12) passes through the through hole (14) and is threadedly connected to a first nut (4). Two rows of small holes (13) are provided on two parallel sides of the long cylinder shell (1), and the small holes (13) and the through holes (14) are connected to each other. The pull rod (5) and the second U-shaped cover (6) are connected to each other, and the outer surface of the pull rod (5) is provided with a plurality of positioning holes (21) that match the small holes (13). The long cylinder shell (1) is provided with a first U-shaped cover (3) and a second U-shaped cover (6). One end of the first U-shaped cover (3) and one end of the second U-shaped cover (6) are plugged into each other, and the other end of the first U-shaped cover (3) is connected to the other end of the second U-shaped cover (6) through a connecting piece. The inner surface of the first U-shaped cover (3) and the inner surface of the second U-shaped cover (6) are both installed with two rows of positioning rods (17) that match the small holes (13). The positioning rods (17) pass through the small holes (13) and extend into the corresponding positioning holes (21).

2. A double-rod cylinder housing according to claim 1, characterized in that: The connecting piece includes a first connecting ear (8), one end of the first U-shaped cover (3) is connected and fixed with the first connecting ear (8), one end of the second U-shaped cover (6) is connected and fixed with a second connecting ear (11) that matches the first connecting ear (8), and the first connecting ear (8) is connected to the second connecting ear (11) through a fastener formed by multiple sets of screws and second nuts (10).

3. A double-rod cylinder housing according to claim 2, characterized in that: The first connecting ear (8) has a first strip-shaped opening (18) on one side, and the second connecting ear (11) has a second strip-shaped opening (19) on one side.

4. A double-rod cylinder housing according to claim 2, characterized in that: An inserting plate (16) is fixedly connected to one end of the first U-shaped cover (3) away from the first connecting ear (8), and a slot (20) matching with the inserting plate (16) is provided on one end of the second U-shaped cover (6) away from the second connecting ear (11), and the inserting plate (16) is inserted into the slot (20).

5. The double-rod cylinder housing according to claim 1, characterized in that: A plurality of first strip grooves (2) are evenly formed on the side surface of the first U-shaped cover (3) for mounting the positioning rod (17), and a plurality of second strip grooves (9) are evenly formed on the side surface of the second U-shaped cover (6) for mounting the positioning rod (17).

6. The double-rod cylinder housing according to claim 1, characterized in that: A communicating cavity is provided at the bottom of the short cylinder shell (7), and the communicating cavity is in communication with the piston cavity inside the short cylinder shell (7) and the piston cavity inside the long cylinder shell (1).

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