CN213865183U - Special screw jack for trailer - Google Patents

Abstract

The utility model discloses a special screw jack for a trailer, which comprises a jack main body, wherein a displacement frame is sleeved on the outer surface of the bottom end of the jack main body, a dragging mechanism is assembled on the upper surface of the rear end of the displacement frame, the displacement frame comprises a fixed frame and a mounting frame, universal wheels capable of being passively lifted are assembled at four corners of the fixed frame and the mounting frame, the special screw jack for the trailer with the bottom capable of being additionally provided with the displacement frame is provided, when in use, the fixed frame and the mounting frame are assembled at the bottom end of the screw jack through a fixed claw structure and are suitable for bolt fixing, when in movement, the telescopic structure and the handle structure of the dragging mechanism are utilized, the special screw jack with the displacement frame is convenient to adapt to the hand to drag the movement of the jack main body with the displacement frame, and when in support, after the support of the screw jack is stressed, the displacement frame passively falls down, a compression spring, a support is located on the ground, so as to ensure stable support, the effectual current trailer jack structure of having solved is great, the problem of being not convenient for remove.

Description

Special screw jack for trailer

Technical Field

The utility model relates to a trailer technical field specifically is special screw jack of trailer.

Background

A trailer refers to a vehicle that is towed by a car without power drive per se. The combination of a truck (truck or tractor, forklift) and one or more trailers, the truck and tractor are the driving sections of the truck train, called main train, the driven section pulled by the main train is called trailer, which is the important type of road transportation, the transportation by truck train is the most effective and simple important means for improving economic benefit, during the use of the trailer, a jack for repairing the truck is needed to be provided, and the volume of the jack with larger supporting force is larger, so that the driver is not convenient to move during the use, and in view of the above problems, the screw jack special for the trailer is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special screw jack of trailer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: special screw jack of trailer, including the jack main part, the bottom surface of jack main part has cup jointed the displacement frame, the rear end upper surface of displacement frame is equipped with towing mechanism, the jack main part includes the base, the surface of base is equipped with the lantern ring, the top of base is equipped with the support cylinder body, the displacement frame includes mount and mounting bracket, mount and mounting bracket cup joint the surface at the lantern ring, the medial extremity assembly butt joint of mount and mounting bracket, the four corners department of mount and mounting bracket is equipped with the universal wheel that can go up and down passively.

Preferably, the top end of the support cylinder is equipped with a sealing member, the inner end of the sealing member is equipped with a support head, and the left side of the support cylinder is equipped with a controller.

Preferably, the inner side end of the fixing frame is provided with a first fixing claw, the inner side end of the mounting frame is provided with a second fixing claw, sleeve holes are formed in the centers of the first fixing claw and the second fixing claw, and bolts are arranged on the inner surface of the sleeve holes.

Preferably, the inner side surfaces of the fixing frame and the mounting frame are provided with sleeve grooves, and the sleeve grooves are sleeved on the outer surface of the lantern ring.

Preferably, the spout has been seted up to the outside end of mount and mounting bracket, the internal surface of spout has cup jointed the gleitbretter, the inboard surface assembly of gleitbretter has the bracing piece, the bottom assembly of bracing piece is on the top of universal wheel, the upper surface assembly of spout medial extremity lower surface and gleitbretter has the spring.

Preferably, the dragging mechanism comprises a telescopic rod, the top end of the telescopic rod is provided with a handle, and the bottom end of the telescopic rod is arranged on the upper surface of the fixing frame.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses set up a dedicated jack of trailer that can install displacement frame additional with bottom, when using, mount and mounting bracket pass through the bottom of stationary dog structure assembly at the jack, and adapt to the bolt fastening, when removing, utilize the flexible and handle structure of pulling the mechanism, be convenient for adapt to the hand and pull the jack main part that has displacement frame and remove, and when supporting, along with the support atress back of jack, the passive whereabouts of displacement frame, compression spring, the support is located ground, and then guarantee stable support, the effectual current trailer jack structure of having solved is great, the problem of being not convenient for to remove.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an assembly schematic diagram of the present invention.

Fig. 3 is the displacement frame sectioning assembly diagram of the utility model.

In the figure: 1. jack main part, 11, base, 12, support cylinder body, 13, sealing member, 14, support head, 15, controller, 16, lantern ring, 17, support, 2, displacement frame, 21, mount, 22, mounting bracket, 23, race, 24, first stationary dog, 25, second stationary dog, 26, trepanning, 27, bolt, 28, spout, 29, gleitbretter, 210, bracing piece, 211, spring, 212, universal wheel, 3, drag mechanism, 31, telescopic link, 32, handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the special screw jack for the trailer comprises a jack main body 1, wherein a displacement frame 2 is sleeved on the outer surface of the bottom end of the jack main body 1, a dragging mechanism 3 is assembled on the upper surface of the rear end of the displacement frame 2, the jack main body 1 comprises a base 11, a lantern ring 16 is assembled on the outer surface of the base 11, a supporting cylinder body 12 is assembled on the top end of the base 11, the displacement frame 2 comprises a fixed frame 21 and an installation frame 22, the fixed frame 21 and the installation frame 22 are sleeved on the outer surface of the lantern ring 16, the inner side ends of the fixed frame 21 and the installation frame 22 are assembled and butted, and universal wheels 212 capable of being passively lifted are assembled at four corners of the fixed frame 21 and the installation frame 22;

the utility model discloses a dedicated jack of trailer that has bottom can install displacement frame 2 additional, when using, mount 21 and mounting bracket 22 pass through the bottom of stationary dog structure assembly at the jack, and it is fixed to adapt to bolt 27, when removing, utilize the flexible and handle 32 structure of pulling mechanism 3, be convenient for adapt to the hand and pull jack main part 1 that has displacement frame 2 and remove, and when supporting, along with behind the support atress of jack, displacement frame 2 falls passively, compression spring 211, support 17 is located on ground, and then guarantee stable support, the effectual current trailer jack structure of having solved is great, be not convenient for the problem of removal.

Particularly, the top of the supporting cylinder 12 is equipped with the sealing member 13, and the medial extremity of the sealing member 13 is equipped with the supporting head 14, and the left side of the supporting cylinder 12 is equipped with the controller 15, the jack main part 1 used in the utility model is a special screw jack of trailer commonly used in the prior art.

Specifically, the inner end of the fixing frame 21 is equipped with a first fixing claw 24, the inner end of the mounting frame 22 is equipped with a second fixing claw 25, the centers of the first fixing claw 24 and the second fixing claw 25 are both provided with a sleeve hole 26, the inner surface of the sleeve hole 26 is equipped with a bolt 27, and the assembly and fixation of the fixing frame 21 and the mounting frame 22 are facilitated through two sets of fixing claw structures.

Particularly, the fixed frame 21 and the mounting frame 22 have inner side surfaces provided with sleeve grooves 23, the sleeve grooves 23 are sleeved on the outer surface of the sleeve ring 16, and the sleeve ring 16 structure facilitates the assembly and positioning of the displacement frame 2, does not affect the steering of the jack main body 1, facilitates the adjustment of the exposure direction of the controller 15, and facilitates the operation.

Specifically, the outside ends of the fixed frame 21 and the mounting frame 22 are provided with the sliding chute 28, the inner surface of the sliding chute 28 is sleeved with the sliding sheet 29, the inner side surface of the sliding sheet 29 is provided with the supporting rod 210, the bottom end of the supporting rod 210 is assembled at the top end of the universal wheel 212, the lower surface of the inner side end of the sliding chute 28 and the upper surface of the sliding sheet 29 are provided with the spring 211, when the lifting jack is used, the lifting jack is opened and influenced by acting force, the lifting jack main body 1 and the displacement frame 2 can fall downwards integrally, the falling stress is far greater than the stress of the spring 211, therefore, the spring 211 can be compressed passively, the support 17 is supported in the middle part, the universal wheel 212 can support in an external auxiliary mode, and the absolute value of the maximum displacement distance of the sliding sheet 19 is equal to the vertical distance from the lower surface of the universal wheel 212 to the lower surface of the support 17.

Specifically, the towing mechanism 3 includes a telescopic rod 31, a handle 32 is mounted on the top end of the telescopic rod 31, the bottom end of the telescopic rod 31 is mounted on the upper surface of the fixed frame 21, and the telescopic rod 31 is a telescopic rod structure similar to a common luggage in the prior art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. Special screw jack of trailer, including jack main part (1), its characterized in that: the bottom surface of jack main part (1) has cup jointed displacement frame (2), the rear end upper surface of displacement frame (2) is equipped with drags mechanism (3), jack main part (1) is including base (11), the surface of base (11) is equipped with lantern ring (16), the top of base (11) is equipped with support cylinder body (12), displacement frame (2) are including mount (21) and mounting bracket (22), mount (21) and mounting bracket (22) cup joint the surface at lantern ring (16), the medial extremity assembly butt joint of mount (21) and mounting bracket (22), the four corners department of mount (21) and mounting bracket (22) is equipped with universal wheel (212) that can go up and down passively.

2. The special screw jack for trailer as claimed in claim 1, wherein: the top end of the supporting cylinder (12) is provided with a sealing piece (13), the inner side end of the sealing piece (13) is provided with a supporting head (14), and the left side of the supporting cylinder (12) is provided with a controller (15).

3. The special screw jack for trailer as claimed in claim 2, wherein: the utility model discloses a fixing device for fixing a car seat, including mount (21), the medial extremity of mount (22) is equipped with first stationary dog (24), the medial extremity of mount (22) is equipped with second stationary dog (25), trepanning (26) have all been seted up to the center department of first stationary dog (24) and second stationary dog (25), the internal surface of trepanning (26) is equipped with bolt (27).

4. A special screw jack for a trailer as claimed in claim 3, wherein: the inner side surfaces of the fixed frame (21) and the mounting frame (22) are provided with sleeve grooves (23), and the sleeve grooves (23) are sleeved on the outer surface of the lantern ring (16).

5. The special screw jack for trailer as claimed in claim 4, wherein: spout (28) have been seted up to the outside end of mount (21) and mounting bracket (22), gleitbretter (29) have been cup jointed to the internal surface of spout (28), the inboard surface of gleitbretter (29) is equipped with bracing piece (210), the top at universal wheel (212) is assembled to the bottom of bracing piece (210), the upper surface of spout (28) medial extremity lower surface and gleitbretter (29) is equipped with spring (211).

6. The special screw jack for trailer as claimed in claim 5, wherein: the dragging mechanism (3) comprises an expansion rod (31), the top end of the expansion rod (31) is provided with a handle (32), and the bottom end of the expansion rod (31) is arranged on the upper surface of the fixed frame (21).

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