Check ring for pneumatic element

Abstract

The utility model discloses a check ring for a pneumatic element, which relates to the technical field of pneumatic elements and comprises a protective shell, a sleeve shell is arranged on the inner wall of the protective shell, eight connecting devices distributed in an annular array are arranged on the outer surface of the sleeve shell, a sliding device is arranged on the outer surface of the sleeve shell, and the sliding device is connected with the protective shell. The sliding device comprises a fixing ring, the outer surface of the fixing ring is attached to the inner wall of the protective shell, six hollow sleeves distributed in an annular array are connected to one end of the fixing ring in a penetrating mode, two sliding plates are arranged on the inner walls of the hollow sleeves, and the ends of the opposite faces of the two sliding plates are jointly and fixedly connected with a first spring. One ends of the opposite faces of the two sliding plates are jointly and fixedly connected with a telescopic rod, the outer surface of the hollow sleeve is provided with a third sliding groove used in cooperation with the two sliding rods, the check ring for the pneumatic element can effectively enhance the buffering effect of the check ring, the check ring can be detached from a connecting piece, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic components, in particular to a retaining ring used for pneumatic components. Background Art

[0002] Pneumatic components are components that perform work through the force generated by gas pressure or expansion, that is, components that convert the elastic energy of compressed air into kinetic energy, such as cylinders, pneumatic motors, steam engines, etc. Pneumatic components are a form of power transmission and also energy conversion devices that use gas pressure to transfer energy.

[0003] However, the prior art still has the following problems:

[0004] Firstly, since pneumatic components need to continuously reciprocate, the automatic buffering effect will deteriorate after a long period of extrusion, and the buffering effect of the retaining ring cannot be effectively enhanced. It will be severely worn over time and has low practicality.

[0005] Secondly, most of the retaining rings used in pneumatic components on the market are directly fixed inside the pneumatic components. The retaining rings cannot be quickly and effectively removed from the connectors on the pneumatic components, making maintenance and inspection very inconvenient.

[0006] In view of the above problems, the inventor proposes a retaining ring for a pneumatic component to solve the above problems. Utility Model Content

[0007] In order to solve the problem that the buffering effect of the retaining ring cannot be effectively enhanced and the retaining ring cannot be quickly and effectively removed from the connecting piece on the pneumatic component; the purpose of the utility model is to provide a retaining ring for a pneumatic component.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions: a retaining ring for a pneumatic element, comprising a protective shell, the inner wall of the protective shell is provided with a sleeve shell, the outer surface of the sleeve shell is provided with eight connecting devices distributed in an annular array, the outer surface of the sleeve shell is provided with a sliding device, the sliding device comprises a fixed ring, the outer surface of the fixed ring is in contact with the inner wall of the protective shell, one end of the fixed ring is penetrated and connected with six hollow sleeves distributed in an annular array, the inner wall of the hollow sleeve is provided with two slide plates, one end of the opposite surfaces of the two slide plates is fixedly connected to a first spring, and the two slide plates are fixedly connected to a first spring. One end of the opposite surface of the skateboard is fixedly connected with a telescopic rod, the first spring and the telescopic rod will continuously compress and stretch between the two skateboards, the outer surfaces of the two skateboards are fixedly connected with a sliding rod, the outer surface of the hollow sleeve is provided with a third sliding groove used to cooperate with the two sliding rods, and the interior of the protective shell is provided with six second sliding grooves used to cooperate with the sliding rods, both ends of the shell are fixedly connected with six fixed plates distributed in a circular array, one end of the fixed plate is fixedly connected with a push rod, the outer surface of the push rod is in contact with the inner wall of the hollow sleeve, and one end of the push rod is in contact with one end of the skateboard.

[0009] Preferably, the connecting device includes a hollow rod, the outer surface of the hollow rod is provided with four first sliding grooves distributed in a circular array, the lower inner wall of the hollow rod is fixedly connected to the second spring, one end of the second spring is fixedly connected to a connecting plate, one end of the connecting plate is fixedly connected to one end of the second spring, the connecting plate moves to squeeze the first spring, and the first spring is compressed in an inner wall of one side of the hollow rod, the outer surface of the connecting plate is fixedly connected to four connecting rods, the outer surfaces of the four connecting rods are respectively fitted with the inner walls of the first sliding groove, the four connecting rods and the four first sliding grooves are distributed in a circular array, one end of the four connecting rods is commonly fixedly connected to a pull ring, one end of the connecting plate is fixedly connected to an insertion rod, one end of the hollow rod is fixedly connected to the outer surface of the sleeve, and one end of the insertion rod is connected through the outer surface of the sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can be used for the reciprocating motion of the pneumatic element. The first spring and the telescopic rod will be continuously compressed and stretched between the two slides. When the fixed ring slides, the hollow sleeve will be driven to slide back and forth. As the hollow sleeve slides back and forth, the push rod and the hollow sleeve are used in coordination. The inner wall of the hollow sleeve will repeatedly fit with the outer surfaces of the two push rods, thereby achieving the purpose of effectively strengthening the buffering effect of the retaining ring.

[0012] 2. The utility model can drive the insertion rod to slide in the inner wall of the sleeve through the connecting plate, and the outer surface of the insertion rod falls off from the inner wall of the connecting piece, and the sleeve and the connecting piece are separated, thereby achieving the purpose of quickly and effectively removing the retaining ring from the connecting piece on the pneumatic component, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the sliding device of the utility model.

[0016] Figure 3 It is a cutaway schematic diagram of the sliding device of the utility model.

[0017] Figure 4 It is a partial structural schematic diagram of the utility model.

[0018] Figure 5 It is a schematic diagram of the connection device of the utility model.

[0019] In the figure: 1. protective shell; 2. sleeve shell; 3. sliding device; 4. connecting device; 5. second slide groove; 31. fixed ring; 32. hollow sleeve; 33. slide plate; 34. first spring; 35. telescopic rod; 36. slide rod; 37. third slide groove; 38. fixed plate; 39. push rod; 41. hollow rod; 42. first slide groove; 43. second spring; 44. connecting plate; 45. connecting rod; 46. pull ring; 47. plug rod. 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 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.

[0021] Embodiment 1: Figure 1-5As shown, the utility model provides a retaining ring for a pneumatic component, comprising a protective shell 1, a sleeve shell 2 is provided on the inner wall of the protective shell 1, eight connecting devices 4 distributed in a circular array are provided on the outer surface of the sleeve shell 2, and a sliding device 3 is provided on the outer surface of the sleeve shell 2;

[0022] The sliding device 3 includes a fixing ring 31, the outer surface of the fixing ring 31 is in contact with the inner wall of the protective shell 1, one end of the fixing ring 31 is connected through six hollow sleeves 32 distributed in a circular array, the inner wall of the hollow sleeve 32 is provided with two slide plates 33, one end of the opposite surface of the two slide plates 33 is fixedly connected to the first spring 34, one end of the opposite surface of the two slide plates 33 is fixedly connected to the telescopic rod 35, the outer surfaces of the two slide plates 33 are fixedly connected to the sliding rod 36, the outer surface of the hollow sleeve 32 is provided with a third sliding groove 37 used to cooperate with the two sliding rods 36, and the protective shell Six second slide grooves 5 for matching with the slide rods 36 are provided inside the housing 1. Six fixing plates 38 distributed in a circular array are fixedly connected at both ends of the housing 2. A push rod 39 is fixedly connected at one end of the fixing plate 38. The outer surface of the push rod 39 fits with the inner wall of the hollow housing 32. One end of the push rod 39 fits with one end of the slide plate 33. As the hollow housing 32 slides back and forth, the push rod 39 and the hollow housing 32 are used in coordination. The inner wall of the hollow housing 32 will repeatedly fit with the outer surfaces of the two push rods 39, thereby achieving the purpose of effectively strengthening the buffering effect of the retaining ring.

[0023] The connecting device 4 includes a hollow rod 41, the outer surface of the hollow rod 41 is provided with four first slide grooves 42 distributed in an annular array, the lower inner wall of the hollow rod 41 is fixedly connected to a second spring 43, one end of the second spring 43 is fixedly connected to a connecting plate 44, one end of the connecting plate 44 is fixedly connected to one end of the second spring 43, and the outer surface of the connecting plate 44 is fixedly connected to four connecting rods 45, the outer surfaces of the four connecting rods 45 are respectively fitted with the inner walls of the first slide groove 42, the four connecting rods 45 and the four first slide grooves 42 are distributed in an annular array, one end of the four connecting rods 45 is commonly fixedly connected to a pull ring 46, one end of the connecting plate 44 is fixedly connected to an insertion rod 47, one end of the hollow rod 41 is fixedly connected to the outer surface of the sleeve shell 2, one end of the insertion rod 47 is connected through the outer surface of the sleeve shell 2, the outer surface of the insertion rod 47 falls off from the inner wall of the connecting piece, and the sleeve shell 2 is separated from the connecting piece, thereby achieving the purpose of quickly and effectively removing the retaining ring from the connecting piece on the pneumatic component and facilitating maintenance.

[0024] Working principle: first, the connecting piece on the pneumatic element is clamped with the inner wall of the sleeve shell 2, and the plug rod 47 limits the connecting piece. When the pneumatic element reciprocates, the reciprocating motion of the sleeve shell 2 drives the outer surface of the fixed ring 31 and the inner wall of the sleeve shell 2 to move toward fitting, and the two sliding rods 36 slide in the inner wall of the second sliding groove 5 opened in the protective shell 1 and the inner wall of the third sliding groove 37 opened in the hollow sleeve 32 respectively. Due to the force generated during the reciprocating motion, the two sliding rods 36 drive the slide plate 33 to slide in the inner wall of the hollow sleeve 32 when moving, and the first spring 34 and the telescopic rod 35 will continuously compress and stretch between the two slide plates 33. When the fixed ring 31 slides, it drives the hollow sleeve 32 to slide back and forth. Due to the reciprocating sliding of the hollow sleeve 32, the push rod 39 is used in conjunction with the hollow sleeve 32, and the inner wall of the hollow sleeve 32 will repeatedly fit with the outer surfaces of the two push rods 39, thereby achieving the purpose of effectively strengthening the buffering effect of the retaining ring;

[0025] When the retaining ring needs to be repaired, the pull ring 46 in the connecting device 4 is pulled respectively, and the pull ring 46 drives the four connecting rods 45 to slide in the inner wall of the first slide groove 42 respectively, and the four connecting rods 45 jointly drive the connecting plate 44 to slide in the inner wall of the hollow rod 41, and the connecting plate 44 moves to squeeze the second spring 43, and the second spring 43 is compressed in the inner wall of one side of the hollow rod 41, and the connecting plate 44 drives the insertion rod 47 to slide in the inner wall penetrated by the sleeve 2, and the outer surface of the insertion rod 47 falls off from the inner wall of the connecting piece, and the sleeve 2 is separated from the connecting piece, thereby achieving the purpose of quickly and effectively removing the retaining ring from the connecting piece on the pneumatic component to facilitate maintenance.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A retaining ring for a pneumatic component, comprising a protective shell (1), characterized in that: The inner wall of the protective shell (1) is provided with a casing (2), the outer surface of the casing (2) is provided with eight connecting devices (4) distributed in a ring array, and the outer surface of the casing (2) is provided with a sliding device (3); The sliding device (3) comprises a fixing ring (31), one end of which is penetrated by six hollow sleeves (32) distributed in a ring array, the inner wall of the hollow sleeve (32) is provided with two slide plates (33), one end of the opposite surfaces of the two slide plates (33) is fixedly connected to a first spring (34), one end of the opposite surfaces of the two slide plates (33) is fixedly connected to a telescopic rod (35), and the outer surfaces of the two slide plates (33) are fixedly connected to a sliding rod (36).

2. A retaining ring for a pneumatic component as claimed in claim 1, characterized in that: The connecting device (4) comprises a hollow rod (41), the outer surface of the hollow rod (41) is provided with four first sliding grooves (42) distributed in a ring array, the lower inner wall of the hollow rod (41) is fixedly connected to a second spring (43), one end of the second spring (43) is fixedly connected to a connecting plate (44), one end of the connecting plate (44) is fixedly connected to one end of the second spring (43), four connecting rods (45) are fixedly connected to the outer surface of the connecting plate (44), one end of the four connecting rods (45) is commonly fixedly connected to a pull ring (46), and one end of the connecting plate (44) is fixedly connected to an insertion rod (47).

3. A retaining ring for a pneumatic component as claimed in claim 2, characterized in that: The outer surfaces of the four connecting rods (45) are respectively fitted with the inner walls of the first sliding grooves (42), and the four connecting rods (45) and the four first sliding grooves (42) are distributed in a ring array.

4. A retaining ring for a pneumatic component as claimed in claim 1, characterized in that: Six fixing plates (38) distributed in a ring array are fixedly connected to both ends of the casing (2), a push rod (39) is fixedly connected to one end of the fixing plate (38), an outer surface of the push rod (39) is in contact with the inner wall of the hollow casing (32), and one end of the push rod (39) is in contact with one end of the slide plate (33).

5. A retaining ring for a pneumatic component as claimed in claim 2, characterized in that: One end of the hollow rod (41) is fixedly connected to the outer surface of the casing (2), and one end of the insertion rod (47) is connected to the outer surface of the casing (2) through a penetration.

6. A retaining ring for a pneumatic component as claimed in claim 1, characterized in that: Six second sliding grooves (5) for use with the sliding rods (36) are provided inside the protective shell (1).

7. A retaining ring for a pneumatic component as claimed in claim 1, characterized in that: The outer surface of the hollow sleeve (32) is provided with a third sliding groove (37) for use with the two sliding rods (36).

8. A retaining ring for a pneumatic component as claimed in claim 1, characterized in that: The outer surface of the fixing ring (31) fits the inner wall of the protective shell (1).

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