Portable folding handle structure of air compressor

Abstract

The utility model discloses a portable folding handle structure of air compressor, including handle seat and handle body of fixed on gas holder. Handle body lower extreme is equipped with a connecting portion, and this connecting portion is housed in handle seat and is equipped with axle hole, and hollow shaft is arranged in the axle hole, and fastening bolt is arranged in the hollow shaft, and the both ends of fastening bolt pass through handle seat and through nut and make the hollow shaft and connecting portion rotatablely hinged on handle seat together, handle seat still is equipped with locking structure, including guide rod, locking pin of slidingly sleeved on guide rod and the elastic member of abutting between handle seat and locking pin, the inner end of locking pin always keeps and the contact of the outer wall of connecting portion, the outer wall of connecting portion is circular profile and is equipped with a locking recess, when handle body is transposed folding position, locking pin is inserted into locking recess. This structure satisfies the demand of folding storage space, and does not knock the foot when pulling, and folding locking is reliable, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of air compressor equipment technology, specifically to a portable folding handle structure for an air compressor. Background Technology

[0002] Currently, most conventional air compressor handles on the market are welded and fixed. This structure has obvious drawbacks: First, when the machine does not need to be moved, the fixed handle protrudes from the tank, taking up a lot of space, which is not conducive to compact storage and transportation, and is prone to collision with other objects; Second, when the machine needs to be moved, because the handle is fixed in position and close to the tank, the user's feet are prone to interfere with the tank when pulling it, making operation very inconvenient and posing a safety hazard. Therefore, a handle structure that can be folded for storage and provides a better pulling experience during use has become an urgent market demand. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide a portable folding handle structure for air compressors that is compact, easy to operate, and has reliable locking. This structure can achieve automatic locking in the folded position, while maintaining flexibility in the unfolded position, and can be equipped with manual auxiliary locking to cope with special working conditions.

[0004] The technical solution of this utility model is: The present invention discloses a portable folding handle structure for an air compressor, comprising a handle base and a handle body fixed to an air tank. The handle body is characterized by a connecting portion at its lower end, which is housed within the handle base and has a shaft hole. A hollow rotating shaft passes through the shaft hole of the connecting portion. A fastening bolt passes through the hollow rotating shaft, with both ends of the fastening bolt passing through the handle base. A nut is used to rotatably pivotally connect the hollow rotating shaft and the connecting portion to the handle base. The handle base is provided with a locking structure, which includes a guide rod fixed to the handle base and extending radially along the connecting part, a locking pin slidably sleeved on the guide rod, and an elastic member abutting between the handle base and the locking pin; the elastic member drives the inner end of the locking pin to always remain in contact with the outer peripheral wall of the connecting part. The outer peripheral wall of the connecting part has a circular outline, and a locking recess is provided on the circular outline; when the handle body is rotated to the folded position close to the gas tank, the locking pin is engaged with the locking recess.

[0005] In the aforementioned structure, this utility model effectively solves the problems of traditional fixed handles occupying a large space and easily interfering with the feet when pulled, through the combination of a foldable pivot connection and an automatic locking structure. Its overall structure is compact and easy to operate. While achieving reliable locking in the folded state, it also ensures flexibility and effortless carrying when unfolded, significantly improving the portability and user experience of the air compressor.

[0006] Preferably, the elastic element is a compression spring, which is sleeved on the guide rod.

[0007] Preferably, the locking recess has a first sidewall and a second sidewall arranged sequentially along the circumference, wherein the first sidewall is located on the front side facing the folding rotation direction; a straight line passing through both the center of the hollow rotating shaft and the bottom point of the locking recess is defined as the radial reference line R; the angle between the first sidewall and the radial reference line R is α, and the angle between the second sidewall and the radial reference line R is β, satisfying α > β. This asymmetrical design ensures that the locking pin can smoothly engage along the gentle slope and reliably lock through the steep wall, while making the unlocking operation more effortless.

[0008] Furthermore, the included angle α satisfies 60°≤α≤75°, and the included angle β satisfies 10°≤β≤20°. This preferred angle range achieves an optimal balance between "operational smoothness" and "locking reliability".

[0009] Preferably, the first sidewall and the circular outer peripheral wall of the connecting portion are smoothly transitioned by a rounded corner. This rounded corner design can further reduce the impact and wear when the locking pin slides in, making the operation smoother and improving the service life of the parts.

[0010] Preferably, the handle base is further provided with an auxiliary locking mechanism; the auxiliary locking mechanism includes a groove formed on the handle base and a slider slidably disposed in the groove; the slider has a first position that allows the locking pin to retract freely, and a second position that moves to the outer end of the locking pin and prevents it from retracting. This mechanism provides a manual safety measure, achieving double safety protection on the basis of automatic locking, and is particularly suitable for harsh working conditions such as bumpy transportation.

[0011] Furthermore, the inner wall of the groove is provided with two positioning recesses corresponding to the first and second positions of the slider, respectively, and the slider is provided with a positioning protrusion that can be selectively engaged with one of the positioning recesses. This positioning structure provides a clear tactile feel and stable holding force for the two working positions of the slider, preventing it from shifting due to vibration.

[0012] Furthermore, the slider extends out of the handle base, and its exposed portion is provided with anti-slip texture.

[0013] The beneficial effects of this utility model are: 1. This utility model provides reliable folding capability for the air compressor handle through the combination of pivot connection and locking structure. The handle can be flexibly switched between the unfolded working position and the folded storage position close to the tank, and is automatically locked in the folded position by the locking structure, which effectively solves the problem that traditional welded handles cannot be folded. When folded, it can greatly save storage and transportation space. When unfolded, its fulcrum position and structural design make the effective lever arm of the handle extending away from the tank longer, providing ample leg space for the user to pull and walk, fundamentally avoiding interference between the feet and the machine tank, making operation more labor-saving and safer.

[0014] 2. Through the asymmetrical design of the locking recess, the gentle first sidewall of this utility model ensures that the locking pin can smoothly engage when folded and slide out effortlessly when unlocked; while its steep second sidewall forms a hard barrier after locking, effectively preventing the handle from continuing to fold and colliding and interfering with the gas tank or other components, thereby improving the overall reliability and service life of the product.

[0015] 3. This utility model uses an added auxiliary locking mechanism as a second line of defense, which can be manually locked to provide additional safety assurance under extreme working conditions such as bumpy transportation, thus meeting higher-level safety requirements. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the handle of this utility model in the unfolded position.

[0018] Figure 3 This is a cross-sectional view of the handle of this utility model when it is in the folded position.

[0019] Figure 4 for Figure 3 A magnified view of a portion of the image. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings: like Figures 1 to 2 As shown in the figure, this embodiment provides a portable folding handle structure for an air compressor, mainly including a handle base 1 and a handle body 2. The handle base 1 is fixed to the air tank of the air compressor. The lower end of the handle body 2 is provided with an integrally formed connecting part 21, which is housed in the cavity of the handle base 1.

[0021] Pivoting connection: A shaft hole is provided on the connecting part 21, and a hollow rotating shaft 3 is inserted through the shaft hole. A fastening bolt 4 is inserted through the hollow rotating shaft 3. Both ends of the fastening bolt 4 pass through the handle seat 1, and the hollow rotating shaft 3 and the connecting part 21 are pivotally connected to the handle seat 1 rotatably by a nut 5; so that the handle body 2 has an unfolded position away from the can and a folded position close to the can.

[0022] Automatic locking mechanism: The handle base 1 is provided with a locking structure 6, which includes a guide rod 61 fixed to the handle base 1 and extending radially along the connecting part 21, a locking pin 62 slidably sleeved on the guide rod 61, and a compression spring 63 sleeved on the guide rod 61. The two ends of the compression spring 63 abut against the inner wall of the handle base 1 and the outer end of the locking pin 62, respectively. Under the preload of the compression spring 63, the inner end of the locking pin 62 always remains in contact with the circular outer peripheral wall of the connecting part 21.

[0023] The outer peripheral wall of the connecting part 21 has a circular outline and is precision machined with a locking recess 211.

[0024] Working process: When the handle body 2 rotates upward to the unfolded position, the locking pin 62 slides on the smooth circular outer wall of the connecting part 21, allowing the handle to rotate freely for easy carrying and pulling. When the handle body 2 rotates downward to the folded position, the locking recess 211 rotates with the connecting part 21 and aligns with the locking pin 62. Under the action of the compression spring 63, the locking pin 62 instantly engages with the locking recess 211, accompanied by a clear "click" sound, achieving automatic locking.

[0025] Reference Figure 2 and Figure 4 The locking recess 211 adopts an asymmetrical design, having a first sidewall 211a and a second sidewall 211b arranged sequentially along the circumference. Along the rotation direction of the handle body 2 toward the folded position, the first sidewall 211a is located on the front side, and the second sidewall 211b is located on the rear side. A straight line passing through both the axis of the hollow rotating shaft 3 and the bottom point of the locking recess 211 is defined as the radial reference line R. The angle α between the first sidewall 211a and the radial reference line R is 70°, forming a gentle slope as a guide surface; the angle β between the second sidewall 211b and the radial reference line R is 14°, forming a steep wall as a locking surface.

[0026] The benefits of this design are as follows: When folding, the locking pin 62 can smoothly slide into the recess along the first sidewall 211a of the gentle slope, making operation effortless. After locking, the steep second sidewall 211b forms a mechanical hard barrier, preventing the handle from folding further downwards and avoiding collision with the gas tank; on the other hand, it works in conjunction with the spring force to effectively "wedge" the locking pin 62 in the corner, providing extremely high locking reliability and preventing accidental pop-out. When unlocking, the user lifts the handle upwards, and the locking pin 62 slides out along the first sidewall 211a of the gentle slope, a process that is equally effortless and smooth.

[0027] Furthermore, the first sidewall 211a and the circular outer peripheral wall of the connecting part 21 are smoothly transitioned by a rounded corner, which further ensures the smoothness of the locking pin 62 when it slides in.

[0028] To further enhance safety under extreme working conditions, this embodiment adds an auxiliary locking mechanism 7 to the handle base 1. This mechanism includes a groove 71 machined into the handle base 1 and a slider 72 slidably disposed therein. The slider 72 partially extends out of the handle base 1, and its exposed surface is provided with anti-slip textures for easy operation. Two positioning recesses 711 are machined on the inner wall of the groove 71 (only one is shown in the sectional view). The bottom of the slider 72 is provided with a positioning protrusion 721, which can selectively engage with the positioning recess 711, thereby locking the slider 72 in either a first or second position.

[0029] In the first position, slider 72 is completely disengaged from the movement path of locking pin 62, without affecting the normal operation of the automatic locking structure. When additional safety is required (such as during long-distance, bumpy transportation), slider 72 is pushed to the second position, where it moves behind the outer end face of locking pin 62. Once in this position, slider 72 forms a physical barrier, preventing locking pin 62 from retracting even if the automatic locking structure fails unexpectedly, thus achieving double protection.

[0030] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model are still covered by the claims of this utility model.

Claims

1. A portable folding handle structure for an air compressor, comprising a handle base fixed to an air tank and a handle body, characterized in that: The lower end of the handle body is provided with a connecting part, which is housed in the handle seat and has a shaft hole; a hollow rotating shaft is inserted into the shaft hole of the connecting part; a fastening bolt is inserted into the hollow rotating shaft, and both ends of the fastening bolt pass through the handle seat, and the hollow rotating shaft and the connecting part are rotatably pivotally connected to the handle seat by a nut. The handle base is provided with a locking structure, which includes a guide rod fixed to the handle base and extending radially along the connecting part, a locking pin slidably sleeved on the guide rod, and an elastic member abutting between the handle base and the locking pin; the elastic member drives the inner end of the locking pin to always remain in contact with the outer peripheral wall of the connecting part. The outer peripheral wall of the connecting part has a circular outline, and a locking recess is provided on the circular outline; when the handle body is rotated to the folded position close to the gas tank, the locking pin is engaged with the locking recess.

2. The portable folding handle structure for an air compressor according to claim 1, characterized in that: The elastic element is a compression spring, which is sleeved on the guide rod.

3. The portable folding handle structure for an air compressor according to claim 1 or 2, characterized in that: The locking recess has a first sidewall and a second sidewall arranged sequentially along the circumference, wherein the first sidewall is located on the front side facing the folding rotation direction; a straight line passing through the center of the hollow rotating shaft and the bottom point of the locking recess is defined as the radial reference line R; the angle between the first sidewall and the radial reference line R is α, the angle between the second sidewall and the radial reference line R is β, and α > β is satisfied.

4. The portable folding handle structure for an air compressor according to claim 3, characterized in that: The included angle α satisfies 60°≤α≤75°, and the included angle β satisfies 10°≤β≤20°.

5. The portable folding handle structure for an air compressor according to claim 3, characterized in that: The first sidewall and the circular outer peripheral wall of the connecting part are smoothly transitioned by a rounded corner.

6. The portable folding handle structure for an air compressor according to claim 1, characterized in that: The handle base is also provided with an auxiliary locking mechanism; the auxiliary locking mechanism includes a groove formed on the handle base and a slider slidably disposed in the groove; the slider has a first position that allows the locking pin to retract freely, and a second position that moves to the outer end of the locking pin and prevents it from retracting.

7. The portable folding handle structure for an air compressor according to claim 6, characterized in that: The inner wall of the slide groove is provided with two positioning recesses corresponding to the first position and the second position of the slider, respectively, and the slider is provided with a positioning protrusion that can be selectively inserted into the positioning recess.

8. The portable folding handle structure for an air compressor according to claim 6, characterized in that: The slider extends out of the handle base, and its exposed portion is provided with anti-slip texture.

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