High-strength air pressure rod guide sleeve

Abstract

The utility model discloses a high-strength air pressure rod guide sleeve, and belongs to the technical field of guide sleeves. The guide sleeve mainly comprises a guide sleeve body, an annular groove is formed in the top face of the guide sleeve body, a metal ring is installed in the annular groove, a circle of the side wall of the metal ring is connected with a circle of the side wall of the annular groove in an inserted mode through a buffering mechanism, a pressing disc is connected to the top face of the guide sleeve body in a clamped mode, and the bottom face of the pressing disc abuts against the metal ring. The buffer mechanism is used for connecting the metal ring and the side wall of the annular groove, when the metal ring is subjected to deviation acting force of the air pressure bar, the inserting block moves in the inserting groove to drive the connecting plate to move, the elastic piece is stretched or compressed to buffer external force, pressure borne by the metal ring is effectively absorbed and dispersed, rigid collision between the metal ring and the annular groove is reduced, and abrasion is reduced. Therefore, the top of the guide sleeve is prevented from being extruded and cracked due to the eccentric axial acting force, and the service life of the guide sleeve is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of guide sleeves, in particular to a high-strength air pressure rod guide sleeve. BACKGROUND

[0002] The air pressure rod guide sleeve is an important component in the air pressure rod, which provides guidance and support for the piston rod or other movable components in the air pressure rod, ensures linear movement during movement, and reduces shaking and deviation.

[0003] However, the existing guide sleeves for air pressure rods are usually integrally cast from plastic material, the guide sleeve is usually installed on the top of the piston cylinder, and the air pressure rod slides in the shaft groove in the guide sleeve. Although the guide sleeve made of plastic material can provide radial movement support for the air pressure rod, the strength of the plastic material is limited. When used for a long time, the guide sleeve will be subjected to an off-axis force when the air pressure rod is not vertically stressed, which will cause the top of the guide sleeve to be extruded and cause the top of the guide sleeve to crack or fail to accurately provide axial guidance for the air pressure rod.

[0004] Therefore, it is necessary to provide a high-strength air pressure rod guide sleeve to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background technology of the present application, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a high-strength air pressure rod guide sleeve to solve the problems raised in the background technology.

[0007] The technical scheme adopted by the application to solve its technical problems is:

[0008] A high-strength air pressure rod guide sleeve, comprising a guide sleeve body, a ring groove is formed in the top surface of the guide sleeve body, a metal ring is installed in the ring groove, the side wall of the metal ring is inserted into the side wall of the ring groove through a buffer mechanism, a pressure plate is connected to the top surface of the guide sleeve body, and the bottom surface of the pressure plate is in contact with the metal ring.

[0009] A plurality of vertical ribs are integrally formed on the side wall of the guide sleeve body in the vertical direction, and a plurality of ring ribs are integrally formed on the side wall of the guide sleeve body in the longitudinal direction.

[0010] Preferably, the spacing between the ring ribs on the side wall of the guide sleeve body gradually increases from top to bottom.

[0011] Preferably, the buffering mechanism comprises an insertion block, an adapter plate, a second clamping groove and an elastic piece, the side wall of the metal ring is provided with an insertion groove, the insertion block is inserted into the insertion groove, the adapter plate is integrally formed with the outer side of the insertion block, the side wall of the adapter plate is provided with a second clamping groove on both sides, one end of the elastic piece is clamped with the second clamping groove, the inner part of the ring groove is provided with a first clamping groove, and the other end of the elastic piece is clamped with the first clamping groove.

[0012] Preferably, the inner part of the pressing disc is provided with a first shaft groove, the top of the metal ring is provided with a necking part, and the necking part is inserted into the first shaft groove.

[0013] Preferably, the inner part of the metal ring and the necking part is provided with a second shaft groove, and the top surface of the necking part to the surface of the metal ring is provided with an arc-shaped transition groove.

[0014] Preferably, the bottom surface of the pressing disc is integrally formed with a fastener on the circumference, the top surface of the guide sleeve body is provided with a clamping groove on the circumference, and the fastener is clamped and connected with the inner part of the clamping groove.

[0015] Preferably, the top of the guide sleeve body is provided with a reinforcing part, and the side wall of the reinforcing part is integrally formed with a reinforcing rib.

[0016] The beneficial effects of the present application are:

[0017] 1. In view of the problem that the existing plastic material guide sleeve is prone to cracking at the top due to the off-axis force of the air pressure rod, a metal ring is installed in the ring groove of the guide sleeve body, and a buffering mechanism is used to connect the metal ring and the side wall of the ring groove. When the metal ring is subjected to the off-axis force of the air pressure rod, the insertion block moves in the insertion groove to drive the adapter plate to displace, and the elastic piece (metal steel sheet) is stretched or compressed to buffer the external force, effectively absorbing and dispersing the pressure received by the metal ring, reducing the rigid collision between the metal ring and the ring groove, and reducing the wear and tear, thereby avoiding the extrusion and cracking of the top of the guide sleeve caused by the off-axis force, and prolonging the service life of the guide sleeve.

[0018] 2. The vertical ribs and ring ribs are arranged on the side wall of the guide sleeve body, the vertical ribs enhance the rigidity in the vertical direction, the ring ribs provide support force at different positions in the longitudinal direction and the spacing gradually increases, the reinforcing part and the reinforcing rib are arranged at the top to directly strengthen the strength and carrying capacity of the top, which not only solves the problem of weak strength and easy deformation of the guide sleeve near the top, but also enables the guide sleeve to withstand greater external force, ensures that the air pressure rod can still provide accurate axial guiding action even if the air pressure rod is subjected to non-vertical force during long-term use, and improves the overall durability and reliability of the guide sleeve.

[0019] In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. These and other objects, features and advantages of the present application will become apparent with reference to the drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The embodiments of the application, illustrated in the drawings and described below, serve to explain the present application.

[0021] In the drawings:

[0022] Figure 1 It is a whole schematic view of the high-strength air pressure rod guide sleeve of the utility model;

[0023] Figure 2 It is an explosion structure schematic view of the air pressure rod guide sleeve of the utility model;

[0024] Figure 3 It is a pressure disc structure schematic view of the utility model;

[0025] Figure 4 It is a metal ring and buffer mechanism structure schematic view of the utility model;

[0026] Figure 5 It is a guide sleeve body structure schematic view of the utility model;

[0027] Figure 6 It is a guide sleeve body structure schematic view of the utility model;

[0028] In the drawings, various reference signs:

[0029] 1, guide sleeve body; 11, ring groove; 12, first clamping groove; 13, buckle groove; 14, vertical rib; 15, ring rib; 16, reinforcing rib; 17, reinforcing part;

[0030] 2, pressure disc; 21, fastener; 22, first shaft groove;

[0031] 3, metal ring; 31, second shaft groove; 32, arc-shaped transition slot; 33, insertion slot;

[0032] 4, buffer mechanism; 41, insertion block; 42, link plate; 43, second clamping groove; 44, elastic member. DETAILED DESCRIPTION

[0033] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should belong to the scope of protection of the present application.

[0035] Please refer to Figures 1-6 The embodiments provided by the utility model have the advantages that the air pressure rod guiding sleeve is provided with the metal ring, the air pressure rod can be guided and the air pressure rod can be prevented from being deviated from the center of the guiding sleeve, the metal ring is provided with the buffer mechanism, the metal ring can be prevented from being damaged by the air pressure rod, the metal ring is provided with the pressure plate, the metal ring can be fixed and pressed, and the air pressure rod can be prevented from being deviated from the center of the guiding sleeve.

[0036] The air pressure rod guiding sleeve has the advantages that the air pressure rod can be guided, the air pressure rod can be prevented from being deviated from the center of the guiding sleeve, the metal ring can be prevented from being damaged by the air pressure rod, the metal ring can be fixed and pressed, and the air pressure rod can be prevented from being deviated from the center of the guiding sleeve.

[0037] Specifically, the buffer mechanism 4 comprises an insertion block 41, a connecting plate 42, a second clamping groove 43 and an elastic piece 44, the side wall of the metal ring 3 is provided with an insertion groove 33, the insertion block 41 is inserted into the insertion groove 33, the connecting plate 42 is integrally formed with the outer side of the insertion block 41, the side wall of the connecting plate 42 is provided with the second clamping groove 43 on both sides, one end of the elastic piece 44 is clamped into the second clamping groove 43, and the inside of the ring groove 11 is provided with a first clamping groove 12, and the other end of the elastic piece 44 is clamped into the first clamping groove 12.

[0038] When the metal ring 3 is subjected to the off-axis force of the air pressure rod, the insertion block 41 can move relatively in the insertion groove 33, the connecting plate 42 is driven to displace, the second clamping groove 43 on the connecting plate 42 is clamped with one end of the elastic piece 44, the first clamping groove 12 in the ring groove 11 is clamped with the other end of the elastic piece 44, the external force is buffered through the stretching or compression of the elastic piece 44, the elastic piece 44 is a metal steel sheet and has a certain elastic potential, the buffer mechanism 4 effectively absorbs and disperses the pressure received by the metal ring 3, reduces the rigid collision between the metal ring 3 and the ring groove 11, and reduces the abrasion.

[0039] The inside of the pressure plate 2 is provided with a first shaft groove 22, the top of the metal ring 3 is provided with a necked portion, the necked portion is inserted into the first shaft groove 22, the insertion structure enables the pressure plate 2 to accurately position the metal ring 3, and a gap is formed between the metal ring 3 and the first shaft groove 22 of the pressure plate 2, so that the metal ring 3 can be positioned and fixed and can also be moved in position in the ring groove 11.

[0040] A second axial groove 31 is provided inside the metal ring 3 and the closing part, and an arc-shaped transition groove 32 is provided between the top surface of the closing part and the surface of the metal ring 3. The arc-shaped transition groove 32 makes the gas pressure rod pass more smoothly, reduces friction and obstruction, and provides convenient conditions for the installation and movement of the gas pressure rod.

[0041] The bottom surface of the pressure plate 2 is integrally formed with fasteners 21, and the top surface of the guide sleeve body 1 is provided with fastener grooves 13. The fasteners 21 are engaged with the inside of the fastener grooves 13. The engagement of the fasteners 21 with the fastener grooves 13 enables the detachable connection between the pressure plate 2 and the guide sleeve body 1. When installing, align the fasteners 21 of the pressure plate 2 with the fastener grooves 13 of the guide sleeve body 1 and press to complete the connection. When disassembling, the reverse operation can be performed to separate the pressure plate 2, which facilitates the maintenance, replacement or adjustment of the internal components of the guide sleeve and also ensures the firmness of the connection between the pressure plate 2 and the guide sleeve body 1.

[0042] In order to ensure the top strength of the guide sleeve body 1, a plurality of vertical ribs 14 are integrally formed on the side wall of the guide sleeve body 1 in the vertical direction, and a plurality of annular ribs 15 are integrally formed on the side wall of the guide sleeve body 1 in the longitudinal direction. The vertical ribs 14 enhance the rigidity of the guide sleeve in the vertical direction, and the annular ribs 15 provide support force at different longitudinal positions. The spacing of the multiple annular ribs 15 on the side wall of the guide sleeve body 1 gradually increases from top to bottom, which solves the problem that the guide sleeve is weak in strength and easy to deform near the top. A reinforcement part 17 is provided on the top of the guide sleeve body 1, and a reinforcement rib 16 is integrally formed on the side wall of the reinforcement part 17. The reinforcement part 17 and the reinforcement rib 16 are directly strengthened for the top of the guide sleeve, thereby improving the strength and bearing capacity of this part, and comprehensively enhancing the structural strength of the guide sleeve body 1, especially the strength of the top, so that it can withstand greater external forces without being easily deformed, thereby improving the overall durability and reliability of the guide sleeve.

[0043] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A high-strength air pressure stick guide sleeve comprising a guide sleeve body (1), characterized in that: The top surface of the guide sleeve body (1) is provided with a ring groove (11), a metal ring (3) is installed in the ring groove (11), the side wall of the metal ring (3) is inserted with the side wall of the ring groove (11) through a buffer mechanism (4), and the top surface of the guide sleeve body (1) is clamped with a pressure plate (2), and the bottom surface of the pressure plate (2) is in abutment with the metal ring (3). A plurality of vertical ribs (14) are integrally formed on the side wall of the guide sleeve body (1) in the vertical direction.

2. A high-strength air pressure rod guide sleeve according to claim 1, characterized in that: The spacing between the plurality of ring ribs (15) on the side wall of the guide sleeve body (1) gradually increases from top to bottom.

3. The high-strength air pressure rod guide sleeve according to claim 1, characterized in that: The buffer mechanism (4) comprises an insertion block (41), a connecting plate (42), a second clamping groove (43) and an elastic member (44), the side wall of the metal ring (3) is provided with an insertion groove (33), the insertion block (41) is inserted into the insertion groove (33), the connecting plate (42) is integrally formed on the outer side of the insertion block (41), the second clamping groove (43) is formed on the side wall of the connecting plate (42), one end of the elastic member (44) is clamped in the second clamping groove (43), the first clamping groove (12) is formed in the ring groove (11), and the other end of the elastic member (44) is clamped in the first clamping groove (12).

4. The high-strength air pressure rod guide sleeve according to claim 1, characterized in that: The inside of the pressure plate (2) is provided with a first shaft groove (22), the top of the metal ring (3) is provided with a closing portion, and the closing portion is inserted into the first shaft groove (22).

5. A high strength air pressure wand guide sleeve as defined in claim 4, wherein: The inside of the metal ring (3) and the closing portion is provided with a second shaft groove (31), and an arc-shaped transition groove (32) is arranged between the top surface of the closing portion and the surface of the metal ring (3).

6. A high-strength air pressure rod guide sleeve according to claim 4, characterized in that: The bottom surface of the pressure plate (2) is integrally formed with a fastener (21) around the circumference, the top surface of the guide sleeve body (1) is provided with a clamping groove (13) around the circumference, and the fastener (21) is clamped and connected with the inside of the clamping groove (13).

7. The high-strength air pressure rod guide sleeve according to claim 1, characterized in that: The top of the guide sleeve body (1) is provided with a reinforcing portion (17), and the side wall of the reinforcing portion (17) is integrally formed with a reinforcing rib (16).

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