Anti-rotation buffer supporting rod

Abstract

According to the anti-rotation buffering supporting rod, the positioning piece and the anti-rotation guiding piece are arranged in the openings in the two ends of the guiding sleeve respectively, the guiding rod is configured to be connected to the sliding hole of the anti-rotation guiding piece in the sliding mode, and the first end of the guiding rod extends into the buffering cavity in the guiding sleeve; the axial movement of the first end of the guide rod is limited by an axial guide section on the positioning piece, and an elastic piece is arranged to maintain the elastic force between the guide rod and the guide sleeve; namely, the sliding hole is matched with the axial guide section to suppress the swing of the guide rod, so that the guide rod is maintained to move axially, the swing amplitude of the guide rod is limited, the loss caused by friction is reduced, and the dust generation amount is reduced, thereby prolonging the service life of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffer support rods, in particular to an anti-rotation buffer support rod. Background Art

[0002] The buffer support rod is an accessory used to reduce the impact force of components and compensate for the height difference of different workpieces. It is widely used in various production fields such as metallurgy, papermaking, automobiles, glass, etc. The buffer support rod products currently on the market, especially the anti-rotation type, have defects such as large swing amplitude and dust generation, short service life, and high noise during use. "Dust generation" refers to the precipitation generated by the friction of the guide rod during the operation of the buffer support rod. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an anti-rotation buffer support rod to solve the problem that the large swing amplitude between the guide rod and the guide sleeve in the existing buffer support rod leads to large dust generation and short service life.

[0004] To solve the above problems, the technical solution of the utility model is:

[0005] The utility model provides an anti-rotation buffer support rod, comprising:

[0006] A guide sleeve, wherein a buffer chamber is provided in the guide sleeve, and two axial ends of the guide sleeve are respectively provided with a first opening and a second opening communicating with the buffer chamber;

[0007] A positioning member fixedly connected to the first opening, and the positioning member is provided with an axial guide section located in the buffer chamber and extending toward the second opening;

[0008] An anti-rotation guide member is fixedly connected to the second opening, and a sliding hole is provided in the anti-rotation guide member and penetrates the second opening in the axial direction, and at least a part of the sliding hole is an anti-rotation hole section.

[0009] A guide rod is axially slidably connected to the sliding hole, and the first end of the guide rod penetrates the buffer chamber; the first end of the guide rod is axially slidably connected to the axial guide section, and the guide rod is provided with an anti-rotation rod section corresponding to the anti-rotation hole section, and the anti-rotation rod section is configured to cooperate with the anti-rotation hole section to limit the guide rod from rotating around its axial direction;

[0010] An elastic member, wherein a first end of the elastic member is connected to the guide sleeve or the positioning member, and a second end of the elastic member is connected to the guide rod.

[0011] In the anti-rotation buffer support rod of the utility model, the positioning member is a positioning joint, and the positioning joint is threadedly connected to the first opening.

[0012] The anti-rotation buffer support rod of the utility model has an end guide hole at the first end of the guide rod, and the axial guide section is slidably connected to the end guide hole.

[0013] The anti-rotation buffer support rod of the utility model has a sealing groove in the end guide hole, and a sealing ring in the sealing groove.

[0014] In the anti-rotation buffer support rod of the utility model, the anti-rotation guide member is a bushing, the bushing is fixedly connected to the second opening, and the cross section of the inner wall surface of the bushing is a polygon.

[0015] The anti-rotation buffer support rod of the utility model is made of PEEK.

[0016] The anti-rotation buffer support rod of the utility model has an inner wall surface of the bushing in the shape of a regular hexagon.

[0017] The utility model provides an anti-rotation buffer support rod, wherein the guide rod is provided with a first air passage penetrating along the axial direction, the positioning member and the axial guide section are provided with a second air passage penetrating along the axial direction, and the first air passage is communicated with the second air passage.

[0018] In the utility model, the anti-rotation buffer support rod, the elastic member is a spring, a step protrusion is arranged on the outer ring surface of the guide rod, and one end of the spring is positioned on the step protrusion.

[0019] The anti-rotation buffer support rod of the utility model further comprises a plurality of mounting nuts, wherein the mounting nuts are threadedly connected to the outer ring surface of the guide sleeve.

[0020] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0021] In one embodiment of the utility model, a positioning member and an anti-rotation guide member are respectively arranged in the openings at both ends of the guide sleeve, the guide rod is configured to be slidably connected to the sliding hole of the anti-rotation guide member, the first end of the guide rod extends into the buffer chamber in the guide sleeve, and the first end of the guide rod is limited in axial movement by the axial guide section on the positioning member, and an elastic member is arranged to maintain the elastic force between the guide rod and the guide sleeve; that is, the sliding hole and the axial guide section cooperate to suppress the swing of the guide rod, maintain the guide rod in axial movement, limit the swing amplitude of the guide rod, reduce the loss caused by friction, reduce the amount of dust generated, and thus improve the product life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the anti-rotation buffer support rod of the utility model;

[0023] Figure 2 It is an axonometric view of the rotary buffer support rod of the utility model.

[0024] Explanation of the accompanying drawings: 1. Guide sleeve; 2. Guide rod; 3. Positioning member; 4. Anti-rotation guide member; 5. Elastic member; 6. Mounting nut; 7. Axial guide section; 8. Sealing ring. DETAILED DESCRIPTION

[0025] The following is a further detailed description of an anti-rotation buffer support rod proposed by the utility model in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the utility model will become more clear according to the following description and claims.

[0026] See also Figure 1 and Figure 2 In one embodiment, an anti-rotation buffer support rod includes a guide sleeve 1, a positioning member 3, an anti-rotation guide member 4, a guide rod 2 and an elastic member 5.

[0027] A buffer chamber is provided in the guide sleeve 1, and a first opening and a second opening communicating with the buffer chamber are provided at two axial ends of the guide sleeve 1, respectively. A positioning member 3 is fixedly connected to the first opening, and an axial guide section 7 is provided on the positioning member 3, which is located in the buffer chamber and extends toward the second opening. An anti-rotation guide member 4 is fixedly connected to the second opening, and a sliding hole is provided in the rotation guide member that penetrates along the axial direction, and at least part of the hole section of the sliding hole is an anti-rotation hole section (the cross section of the anti-rotation hole section is maintained to be non-perfectly circular to achieve anti-rotation).

[0028] The guide rod 2 is axially slidably connected to the sliding hole, and the first end of the guide rod 2 penetrates the buffer chamber. The first end of the guide rod 2 is axially slidably connected to the axial guide section 7, and the guide rod 2 is provided with an anti-rotation rod section corresponding to the anti-rotation hole section, and the anti-rotation rod section is configured to cooperate with the anti-rotation hole section to limit the guide rod 2 from rotating around its axial direction.

[0029] The first end of the elastic member 5 is connected to the guide sleeve 1 or the positioning member 3 , and the second end of the elastic member 5 is connected to the guide rod 2 .

[0030] In this embodiment, positioning members 3 and anti-rotation guide members 4 are respectively arranged in the openings at both ends of the guide sleeve 1, the guide rod 2 is configured to be slidably connected to the sliding hole of the anti-rotation guide member 4, the first end of the guide rod 2 extends into the buffer chamber in the guide sleeve 1, and the first end of the guide rod 2 is limited in axial movement by the axial guide segment 7 on the positioning member 3, and an elastic member 5 is arranged to maintain the elastic force between the guide rod 2 and the guide sleeve 1. That is, the sliding hole and the axial guide segment 7 cooperate to suppress the swing of the guide rod 2, maintain the guide rod 2 in axial motion, limit the swing amplitude of the guide rod 2, reduce the loss caused by friction, reduce the amount of dust generated, and thus improve the product life.

[0031] The specific structure of the rotating buffer support rod of this embodiment is further described below:

[0032] In this embodiment, the positioning member 3 may be a positioning joint, which is threadedly connected to the first opening, and a side of the positioning joint away from the guide sleeve 1 is used for connecting to an external device.

[0033] In this embodiment, an end guide hole is specifically provided at the first end of the guide rod 2, and the axial guide section 7 can be provided to be slidably connected to the end guide hole, that is, the outer diameter of the axial guide section 7 matches the inner diameter of the end guide hole, and the sliding connection is achieved by inserting the axial guide section 7 into the end guide hole.

[0034] In this embodiment, the guide rod 2 is provided with a first air passage running axially therethrough, the positioning member 3 and the axial guide section 7 are provided with a second air passage running axially therethrough, and the axial guide section 7 is inserted into the end guide hole of the guide rod 2 to realize the connection between the first air passage and the second air passage.

[0035] Furthermore, in order to prevent gas from leaking from the gap between the axial guide section 7 and the end guide hole, a sealing groove may be further provided in the end guide hole, and a sealing ring 8 may be provided in the sealing groove to seal the gap between the axial guide section 7 and the end guide hole.

[0036] In this embodiment, the above-mentioned anti-rotation guide member 4 can be specifically a bushing, which is fixedly connected to the second opening (which can be an interference fit or a threaded connection), and the cross-section of the inner wall of the bushing is a polygon. The inner wall of the bushing is the above-mentioned anti-rotation hole section, and the anti-rotation rod section on the guide rod 2 is a polygonal shape corresponding to the polygon, thereby achieving matching between the two.

[0037] Furthermore, the bushing may be made of PEEK. The excellent performance of PEEK can effectively reduce the amount of dust generated during the friction of the guide rod 2 during its movement, and its wear resistance can greatly increase its service life.

[0038] Furthermore, in order to achieve better anti-rotation performance and ensure smooth sliding connection as much as possible (that is, the contact area between a single surface is not too large), the inner wall of the bushing can be a regular hexagon, and the anti-rotation rod section of the guide rod 2 is also a regular hexagon.

[0039] Specifically, an inward abutment protrusion may be provided on one side of the buffer chamber of the guide sleeve 1 close to the second opening, for abutting against the abutment protrusion when the bushing is inserted into the second opening, so as to locate the installation position of the bushing.

[0040] In this embodiment, the elastic member 5 may be a spring, which is arranged in the buffer chamber. A step protrusion may be provided on the outer ring surface of the guide rod 2. One end of the spring is positioned on the step protrusion, and the other end may abut against the positioning joint, thereby providing elastic force.

[0041] In this embodiment, in order to facilitate the installation of the anti-rotation buffer support rod, the anti-rotation buffer support rod may also include a plurality of mounting nuts 6, and the mounting nuts 6 are threadedly connected to the outer ring surface of the guide sleeve 1, that is, the outer ring surface of the guide sleeve 1 may be provided with threads, and the relative position with the external structure can be fixed by the cooperation between the two mounting nuts 6.

[0042] The anti-rotation buffer support rod of this embodiment is suitable for working conditions with high requirements for repeated positioning and high dust generation, such as 3C electronics and other industries. The upper and lower limit sleeves made of PEEK material are closely matched with the guide rod 2 to effectively reduce the swing amplitude of the buffer support rod.

[0043] The upper part of the positioning joint can be directly connected to the air pipe screw. When the workpiece moves up and down, the upper part will not move with the workpiece, which improves the safety of the product during use. The internal guide mechanism (such as the bushing) is made of plastic rubber soft material, which greatly reduces the noise generated by the product during use.

[0044] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. An anti-rotation buffer support rod, characterized in that: include: A guide sleeve, wherein a buffer chamber is provided in the guide sleeve, and two axial ends of the guide sleeve are respectively provided with a first opening and a second opening communicating with the buffer chamber; A positioning member, fixedly connected to the first opening, and provided with an axial guide section located in the buffer chamber and extending toward the second opening; An anti-rotation guide member is fixedly connected to the second opening, and a sliding hole is provided in the anti-rotation guide member and penetrates the second opening in the axial direction, and at least a part of the sliding hole is an anti-rotation hole section; A guide rod is axially slidably connected to the sliding hole, and the first end of the guide rod penetrates the buffer chamber; the first end of the guide rod is axially slidably connected to the axial guide section, and the guide rod is provided with an anti-rotation rod section corresponding to the anti-rotation hole section, and the anti-rotation rod section is configured to cooperate with the anti-rotation hole section to limit the guide rod from rotating around its axial direction; An elastic member, wherein a first end of the elastic member is connected to the guide sleeve or the positioning member, and a second end of the elastic member is connected to the guide rod.

2. The anti-rotation buffer support rod according to claim 1, characterized in that: The positioning member is a positioning joint, and the positioning joint is threadedly connected to the first opening.

3. The anti-rotation buffer support rod according to claim 1, characterized in that: An end guide hole is provided at the first end of the guide rod, and the axial guide section is slidably connected to the end guide hole.

4. The anti-rotation buffer support rod according to claim 3, characterized in that: A sealing groove is arranged in the end guide hole, and a sealing ring is arranged in the sealing groove.

5. The anti-rotation buffer support rod according to claim 1, characterized in that: The anti-rotation guide is a bushing, the bushing is fixedly connected to the second opening, and the cross section of the inner wall of the bushing is a polygon.

6. The anti-rotation buffer support rod according to claim 5, characterized in that: The material of the bushing is PEEK.

7. The anti-rotation buffer support rod according to claim 5, characterized in that: The inner wall surface of the bushing is a regular hexagon.

8. The anti-rotation buffer support rod according to claim 1, characterized in that: A first air passage is axially penetrated in the guide rod, and a second air passage is axially penetrated in the positioning member and the axial guide section, and the first air passage is communicated with the second air passage.

9. The anti-rotation buffer support rod according to claim 1, characterized in that: The elastic member is a spring, a step protrusion is provided on the outer ring surface of the guide rod, and one end of the spring is positioned on the step protrusion.

10. The anti-rotation buffer support rod according to claim 1, characterized in that: It also includes a plurality of mounting nuts, which are threadedly connected to the outer ring surface of the guide sleeve.

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