CN212292685U - Operating handle lever rebound buffer mechanism of tray truck - Google Patents

Abstract

The utility model provides a handle bar rebound buffer gear of tray truck belongs to carrier technical field. It has solved the current poor and big problem of noise of control handle pole bounce-back stability. This handle lever bounce-back buffer gear of tray truck, including tray truck including big hydro-cylinder, little hydro-cylinder and handle lever, one side on the big hydro-cylinder has the installation department, the installation department has the cavity, and handle lever's lower extreme is located the cavity and articulated with the installation department, and little hydro-cylinder setting is in the cavity, and this handle lever bounce-back buffer gear establishes including the cover on little hydro-cylinder and can offset the spring that leans on with handle lever, and one side of handle lever lower extreme is provided with the buffer block, and when handle lever is vertical state, the buffer block offsets with the up end of installation department and leans on. The structure has the advantages of operating handle rod rebound stability and low noise.

Description

Operating handle lever rebound buffer mechanism of tray truck

Technical Field

The utility model belongs to the technical field of the carrier, a tray carrier is related to, refer in particular to a tray carrier's control handle pole bounce-back buffer gear.

Background

At present, most of traditional tray carrying vehicles and stacking vehicles in the market use metal springs and gas springs to realize the reset of a control handle rod, and the metal springs occupy most of the market of middle-low tray carrying vehicles and stacking vehicles with unique stability and price advantages.

Tray carrier and heap high car if adopt metal spring to realize the handle pole and reset the case, metal spring's resilience force is in case stereotyped, metal spring is just unable the size of adjusting the resilience force, handle pole is under the effect of metal spring resilience force, be an acceleration resilience process, meet the spacing time that stops of metal machinery after handle pole kick-backs, handle pole can be because of not cushioning and limit structure bump, and produce huge impact force, and then can produce great noise of impact, the very easy spare part that makes mutual striking damages, or make other spare parts of fixing on the spare part of mutual striking damage.

If tray carrier and heap high car adopt the air spring to realize that the control handle pole resets, though the air spring can realize the buffering resilience of control handle pole, avoids control handle pole and limit structure to take place violent striking, but the stability of quality of air spring is relatively poor with the adaptability to the temperature, damages easily, and the high or low temperature all produces big influence to the counter-elastic force, and then influences the stability that the control handle pole resets.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a tray truck's control handle pole bounce-back buffer gear, the utility model aims to solve the technical problem that: how to reduce the rebound noise of the operating handle bar while ensuring the rebound stability of the operating handle bar.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a handle pole rebound buffer gear of tray truck, tray truck include big hydro-cylinder, little hydro-cylinder and handle pole, one side on the big hydro-cylinder has the installation department, the installation department has the cavity, the lower extreme of handle pole is located the cavity and is articulated with the installation department, a serial communication port, little hydro-cylinder setting is in the cavity, and this handle pole rebound buffer gear establishes including the cover on little hydro-cylinder and can offset the spring that leans on with the handle pole, one side of handle pole lower extreme is provided with the buffer block, and when the handle pole is vertical state, the buffer block offsets with the up end of installation department and leans on.

Through the setting of this structure, the handle pole upwards overturns under the effect of spring and resets, when the handle pole upwards overturns and is vertical state, the handle pole resets to target in place this moment, and the buffer block offsets with the up end of installation department and leans on, because the buffer block has certain elasticity, take place deformation after the buffer block bumps with the installation department, absorb collision energy, the lower extreme of avoiding the handle pole takes place the striking with the up end of installation department, no buffering striking between the metal has been eliminated, and reduce the rebound noise of handle pole, the noise pollution has been reduced, the spare part relevant with the striking has still been protected, the life of relevant spare part has been improved greatly.

In foretell tray truck's control handle pole bounce-back buffer gear, the lower extreme of control handle pole has articulated portion and the spacing portion that the lower surface can lean on with the up end counterbalance of installation department, the mounting groove has been seted up on the lower surface of spacing portion, the buffer block sets up in the mounting groove to the lower extreme of buffer block is located outside the mounting groove. Through the arrangement of the structure, when the operating handle rod is turned upwards for resetting, the lower end of the buffer block is positioned outside the mounting groove, and the lower end surface of the buffer block is abutted against the upper end surface of the mounting part, so that the lower surface of the limiting part is prevented from colliding with the upper end surface of the mounting part; after the control handle lever resets in place, the user can exert certain strength on the control handle lever, and the buffer block is further compressed for the lower surface of spacing portion contacts with the up end of installation department, thereby can realize promoting the control handle lever and promote the carrier.

In the above-mentioned handle bar rebounding buffer mechanism for a pallet truck, the buffer block is fixed to the handle bar by a screw. Through the arrangement of the structure, the buffer block can be conveniently mounted and dismounted on the control handle rod.

In the above-mentioned handle bar rebounding buffer mechanism for a pallet jack, the buffer block is made of a rubber material or a silica gel material.

In the above-mentioned operating handle bar rebounding buffer mechanism of the pallet truck, the operating handle bar rebounding buffer mechanism further comprises a pin shaft, and the hinge portion is hinged to the mounting portion through the pin shaft.

Compared with the prior art, the utility model discloses a have following advantage: the handle pole resets in the upset that makes progress under the effect of spring, when the handle pole upwards overturns and is vertical state, the handle pole resets to target in place this moment, and the buffer block supports with the up end of installation department and leans on, because the buffer block has certain elasticity, take place deformation after the buffer block bumps with the installation department, absorb collision energy, the lower extreme of avoiding the handle pole takes place the striking with the up end of installation department, no buffering striking between the metal has been eliminated, and reduce the rebound noise of handle pole, noise pollution has been reduced, the spare part relevant with the striking has still been protected, the life of relevant spare part has been improved greatly.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a large oil cylinder; 11. an installation part; 11a, a cavity; 2. a small oil cylinder; 3. a lever; 31. a hinge portion; 32. a limiting part; 32a, a mounting groove; 4. a spring; 5. a buffer block; 6. a screw; 7. and (7) a pin shaft.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the operating handle bar rebound buffering mechanism of the pallet truck comprises a large oil cylinder 1, a small oil cylinder 2 and an operating handle bar 3, one side of the large oil cylinder 1 is provided with a mounting part 11, the mounting part 11 is provided with a cavity 11a, the lower end of the operating handle bar 3 is positioned in the cavity 11a and is hinged with the mounting part 11, the tray truck is characterized in that the small oil cylinder 2 is arranged in the cavity 11a, the operating handle bar rebound buffering mechanism comprises a spring 4 which is sleeved on the small oil cylinder 2 and can be abutted against the operating handle bar 3, one side of the lower end of the operating handle bar 3 is provided with a buffering block 5, when the operating handle bar 3 is in a vertical state, the buffering block 5 is abutted against the upper end surface of the mounting part 11, the lower end of the operating handle bar 3 is provided with a hinged part 31 and a limiting part 32 of which the lower surface can be abutted against the upper end surface of the mounting part 11, the buffer block 5 is disposed in the installation groove 32a, and the lower end of the buffer block 5 is located outside the installation groove 32 a. When the operating handle rod 3 is turned upwards for resetting, the lower end of the buffer block 5 is positioned outside the mounting groove 32a, and the lower end surface of the buffer block 5 is abutted against the upper end surface of the mounting part 11, so that the lower surface of the limiting part 32 is prevented from colliding with the upper end surface of the mounting part 11; when the handlebar 3 is returned to the proper position, the user can apply a certain force to the handlebar 3, and the bumper 5 is further compressed, so that the lower surface of the limiting portion 32 is in contact with the upper end surface of the mounting portion 11, and the handlebar 3 can be pushed to push the carrier.

The buffer block 5 is fixed on the operating handle rod 3 through a screw 6; the buffer block 5 is made of rubber material or silica gel material; the rebound buffering mechanism of the control handle rod further comprises a pin shaft 7, and the hinge part 31 is hinged on the mounting part 11 through the pin shaft 7.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (5)

1. A rebound buffering mechanism for a control handle rod of a pallet truck comprises a large oil cylinder (1), a small oil cylinder (2) and a control handle rod (3), one side of the large oil cylinder (1) is provided with a mounting part (11), the mounting part (11) is provided with a concave cavity (11a), the lower end of the operating handle rod (3) is positioned in the concave cavity (11a) and is hinged with the mounting part (11), it is characterized in that the small oil cylinder (2) is arranged in the concave cavity (11a), the control handle rod rebounding buffer mechanism comprises a spring (4) which is sleeved on the small oil cylinder (2) and can be propped against the control handle rod (3), one side of the lower end of the operating handle rod (3) is provided with a buffer block (5), when the control handle rod (3) is in a vertical state, the buffer block (5) is abutted against the upper end face of the mounting part (11).

2. The handle bar rebound cushion mechanism of a pallet truck according to claim 1, wherein the lower end of the handle bar (3) has a hinge portion (31) and a stopper portion (32) having a lower surface capable of abutting against the upper end surface of the mounting portion (11), an installation groove (32a) is formed in the lower surface of the stopper portion (32), the cushion block (5) is disposed in the installation groove (32a), and the lower end of the cushion block (5) is located outside the installation groove (32 a).

3. The handlebar rebound damping mechanism for a pallet jack according to claim 2, characterized in that the damping block (5) is fixed to the handlebar (3) by means of screws (6).

4. The handlebar rebound damping mechanism of a pallet jack according to claim 2, characterized in that the damping block (5) is made of a rubber material or a silicone material.

5. The handle bar rebound damping mechanism for a pallet jack according to claim 2, wherein the handle bar rebound damping mechanism further comprises a pin (7), and the hinge portion (31) is hinged to the mounting portion (11) by the pin (7).

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