CN220432180U - Security support with limit structure - Google Patents

Abstract

The utility model discloses a security support with a limiting structure, which comprises a base, a push rod assembly and a handle assembly, wherein the push rod assembly is arranged on the base; the ejector rod assembly comprises a guide bracket and an ejector rod; the guide bracket is arranged on the base, and the main body of the ejector rod is arranged in the opening cavity of the guide bracket and can move up and down along the opening cavity; the top of the ejector rod is provided with a limiting support block, the side surface of the ejector rod is provided with a plurality of tooth-shaped grooves, and the tooth-shaped grooves comprise support grooves and limiting grooves which are reversely arranged in the notch; the handle assembly comprises a handle, a fulcrum pin shaft and a limiting pin shaft are arranged at one end of the handle, the handle is movably mounted on the guide bracket through a fulcrum pin shaft matched sleeve, and the limiting pin shaft is used for being in limiting fit with the tooth-shaped groove. According to the utility model, the reverse tooth grooves are formed in the tail end of the ejector rod, and when the ejector rod moves to the tail end position, the pin shafts of the handles are hooked by the reverse tooth grooves, so that the ejector rod is prevented from moving continuously and is prevented from falling off.

Description

Security support with limit structure

Technical Field

The utility model relates to the field of security supports, in particular to a security support with a limiting structure.

Background

The safety support is a product for supporting the automobile after the jack lifts the automobile. The current common security support structure comprises a base, a rack, a pawl, an operating rod and the like, wherein the pawl and the operating rod are connected to a supporting seat through elastic pins, a plurality of grooves are formed in the rack, and the grooves and the pawl are matched for clamping.

For example: the utility model provides a 201720410914.4 patent document discloses a security support, the on-line screen storage device comprises a base, fixedly connected with chassis on the base, be provided with the connecting block on the chassis, be provided with the universal ball in the connecting block, be provided with a plurality of joint pieces that are used for the joint universal ball on the connecting block, it is adjacent form the cavity between the joint piece, still be provided with on the connecting block and supply universal ball joint pivoted joint groove, just be provided with the backup pad on the universal ball.

When the security support is used, one end of the operating rod is shifted downwards, so that the pawl can be clamped in the groove of the rack to support the weight conveniently, and the height of the rack can be adjusted according to different height requirements. When one end of the operating rod is shifted upwards, the pawl is released from the groove so as to be convenient for adjusting the height or taking out from the weight.

However, the rack of the security support lacks a necessary limit structure, and when the rack is operated to ascend by the operating rod, the rack is easy to fall off beyond the maximum stroke position, so that potential safety hazards exist.

Accordingly, there is a need for an improvement in such a structure to overcome the above-described drawbacks.

Disclosure of Invention

The utility model aims to provide a security support with a limiting structure, wherein a reverse tooth groove is arranged at the tail end of a push rod, and when the push rod moves to the tail end position, the reverse tooth groove hooks a pin shaft of a handle, so that the push rod is prevented from moving continuously and is prevented from falling off.

The technical aim of the utility model is realized by the following technical scheme:

a security support with a limit structure comprises a base, a push rod assembly arranged on the base and a handle assembly matched with the push rod assembly;

the ejector rod assembly comprises a guide bracket and an ejector rod;

the guide bracket is arranged on the base and is provided with an open cavity, and a sleeve is arranged on the outer surface of the guide bracket;

the main body of the ejector rod is arranged in the opening cavity of the guide bracket and can move up and down along the opening cavity; the top of the ejector rod is provided with a limiting support block, the side surface of the ejector rod is provided with a plurality of tooth-shaped grooves, each tooth-shaped groove comprises a support groove and a limiting groove, the support grooves are distributed along the side surface of the ejector rod, the limiting grooves are arranged at the tail end of the side surface of the ejector rod, and the notches of the support grooves and the limiting grooves are reversely arranged;

the handle assembly comprises a handle, a fulcrum pin shaft, a limit pin shaft and an R pin; the pivot pin shaft and the limiting pin shaft are arranged at one end of the handle, the handle is movably arranged on the guide bracket through the pivot pin shaft matched sleeve, and the limiting pin shaft is used for being in limiting fit with the tooth-shaped groove.

Further, the base comprises a base plate, a group of side edges of the base plate are respectively provided with a reinforcing plate, the bottom of the reinforcing plate is fixedly connected with the base plate, and the top of the reinforcing plate is fixedly connected with the ejector rod assembly.

Further, the main body of the reinforcing plate is of a trapezoid structure, and the width of the reinforcing plate gradually decreases from the bottom to the top.

Further, the supporting grooves and the limiting grooves are uniformly distributed on the side face of the ejector rod, the supporting grooves are provided with notches which are obliquely upwards arranged, and the limiting grooves are provided with notches which are obliquely downwards arranged.

Further, the handle assembly further comprises an R pin, wherein the R pin is respectively arranged on the fulcrum pin shaft and the limiting pin shaft and is used for fixedly mounting the fulcrum pin shaft and the limiting pin shaft.

In summary, the utility model has the following beneficial effects:

through setting up reverse tooth's socket at the end of ejector pin, when the ejector pin moved to the end position, reverse tooth's socket that sets up could catch on the round pin axle of handle to prevent that the ejector pin from continuing to remove, and prevent that the ejector pin from droing.

Drawings

Fig. 1 is an exploded view of a jack stand according to the present utility model.

Fig. 2 is an assembled schematic view of the jack stand according to the present utility model.

Fig. 3 is a schematic view of the maximum travel of the rack of the jack stand according to the present utility model.

Fig. 4 is a schematic view of the structure of the rack according to the present utility model.

Detailed Description

In order that the manner in which the above-recited features, advantages, objects and advantages of the utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

As shown in fig. 1 to 4, the security support with a limiting structure provided by the utility model comprises a base 1, a push rod assembly 2 arranged on the base 1, and a handle assembly 3 matched with the push rod assembly 2;

the ejector rod assembly 2 comprises a guide bracket 21 and an ejector rod 22;

the guide bracket 21 is arranged on the base 1, the guide bracket 21 is provided with an open cavity 23, and a sleeve 24 is arranged on the outer surface of the guide bracket 21;

the main body of the ejector rod 22 is arranged in the opening cavity 23 of the guide bracket 21 and can move up and down along the opening cavity 23; the top of the ejector rod 22 is provided with a limiting support block 25, the side surface of the ejector rod 22 is provided with a plurality of tooth-shaped grooves 26, each tooth-shaped groove 26 comprises a support groove 261 and a limiting groove 262, the support grooves 261 are distributed along the side surface of the ejector rod 22, the limiting grooves 262 are arranged at the tail end of the side surface of the ejector rod 22, and the notches of the support grooves 261 and the limiting grooves 262 are reversely arranged;

the handle assembly 3 comprises a handle 31, a fulcrum pin shaft 32, a limit pin shaft 33 and an R pin 34; the pivot pin 32 and the limit pin 33 are arranged at one end of the handle 31, the handle 31 is movably arranged on the guide bracket 21 through the pivot pin 32 matched with the sleeve 24, and the limit pin 33 is used for being in limit fit with the tooth-shaped groove 26.

The base 1 comprises a base plate 11, wherein a group of side edges of the base plate 11 are respectively provided with a reinforcing plate 12, the bottom of the reinforcing plate 12 is fixedly connected with the base plate 11, and the top of the reinforcing plate 12 is fixedly connected with the ejector rod assembly 2;

the main body of the reinforcing plate 12 has a trapezoid structure, and the width of the reinforcing plate 12 gradually decreases from the bottom to the top.

The supporting groove 261 and the limiting groove 262 are uniformly distributed on the side surface of the ejector rod 22, the supporting groove 261 is provided with a notch which is obliquely upwards arranged, and the limiting groove 262 is provided with a notch which is obliquely downwards arranged.

The handle assembly 3 further comprises an R pin 34, wherein the R pin 34 is respectively arranged on the fulcrum pin 32 and the limit pin 33, and is used for fixedly installing the fulcrum pin 32 and the limit pin 33.

The working principle of the utility model is as follows:

after the utility model is assembled according to the structure, when the utility model needs to be used, the ejector rod 22 is lifted upwards through the limit supporting block 25, and the notch of the supporting groove 261 is obliquely upwards opened, so that the limit pin shaft 33 slides out of the supporting groove 261 along the supporting groove 261 by taking the pivot pin shaft 32 as a pivot in the upward lifting process of the ejector rod 22; when the jack 22 is lifted to the target height, the limit pin 33 slides into the support groove 261 corresponding to the height, and limits the jack 22 to the current height position.

In the upward lifting process of the ejector rod 22, if the lifting height of the ejector rod 22 exceeds the maximum stroke position, the limiting pin shaft 33 slides into the limiting groove 262 at the tail end of the ejector rod 22, and the limiting pin shaft 33 cannot be separated from the limiting groove 262 through the upward lifting of the ejector rod 22 due to the obliquely downward arrangement of the notch of the limiting groove 262, so that the ejector rod 22 is prevented from continuously moving and the ejector rod 22 is prevented from falling off.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. refer to the directions or positional relationships based on those shown in the drawings, and are merely for clarity and convenience of description of the expression technical solution, and thus should not be construed as limiting the present utility model.

In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements is included, and may include other elements not expressly listed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. A security support with a limiting structure comprises a base (1), a push rod assembly (2) arranged on the base (1), and a handle assembly (3) matched with the push rod assembly (2);

the device is characterized in that the ejector rod assembly (2) comprises a guide bracket (21) and an ejector rod (22);

the guide bracket (21) is arranged on the base (1), the guide bracket (21) is provided with an open cavity (23), and the outer surface of the guide bracket (21) is provided with a sleeve (24);

the main body of the ejector rod (22) is arranged in an opening cavity (23) of the guide bracket (21) and can move up and down along the opening cavity (23); a limiting support block (25) is arranged at the top of the ejector rod (22), a plurality of tooth-shaped grooves (26) are formed in the side face of the ejector rod (22), the tooth-shaped grooves (26) comprise support grooves (261) and limiting grooves (262), the support grooves (261) are distributed along the side face of the ejector rod (22), the limiting grooves (262) are arranged at the tail end of the side face of the ejector rod (22), and the notch of each of the support grooves (261) and the notch of each of the limiting grooves (262) are reversely arranged;

the handle assembly (3) comprises a handle (31), a fulcrum pin shaft (32), a limit pin shaft (33) and an R pin (34); the fulcrum pin shaft (32) and the limit pin shaft (33) are arranged at one end of the handle (31), the handle (31) is movably mounted on the guide bracket (21) through the fulcrum pin shaft (32) matched sleeve (24), and the limit pin shaft (33) is used for being in limit fit with the tooth-shaped groove (26).

2. The security support with the limiting structure according to claim 1, wherein the base (1) comprises a base plate (11), a group of side edges of the base plate (11) are respectively provided with a reinforcing plate (12), the bottom of the reinforcing plate (12) is fixedly connected with the base plate (11), and the top of the reinforcing plate (12) is fixedly connected with the ejector rod assembly (2).

3. The jack stand with the limit structure according to claim 2, wherein the main body of the reinforcing plate (12) has a trapezoidal structure, and the width of the reinforcing plate (12) gradually decreases from the bottom to the top.

4. The security support with the limiting structure according to claim 1, wherein the supporting grooves (261) and the limiting grooves (262) are uniformly distributed on the side surface of the ejector rod (22), the supporting grooves (261) are provided with notches which are obliquely upwards opened, and the limiting grooves (262) are provided with notches which are obliquely downwards opened.

5. The jack stand with the limit structure according to claim 1, wherein the pull handle assembly (3) further comprises R pins (34), the R pins (34) being provided on the fulcrum pin (32) and the limit pin (33), respectively, for fixedly mounting the fulcrum pin (32) and the limit pin (33).