Security bracket with improved structure

Abstract

The utility model discloses a security bracket with an improved structure. The security bracket is characterized by further comprising a torsional spring and a positioning plate, wherein the torsional spring is used for pushing a pawl to enable the pawl to tend to be in a compressed state; and the positioning plate is arranged on a base and used for limiting the position of the pawl. According to the utility model, through the arrangement of the torsion spring, the pawl is extruded so as to tend to be in a compressed state all the time, and the pawl can be automatically reset and compressed through the reset force of the torsion spring after being pressed and opened, so that the stability of the pawl when the rack is supported is ensured, and the pawl is prevented from being easily separated; meanwhile, the pawl can be opened only by pressing the tail end of the pawl when the rack is adjusted downwards or installed, and operation is easy and convenient; through the arrangement of the chain assembly, the safety pin and the base are connected into a whole, and the problem of loss is avoided; and through the arrangement of the limiting groove and the flat head screw, the up-and-down moving stroke of the rack is limited, disengaging caused by over-stroke in the up-and-down moving process is avoided, and the problem of losing caused by disengaging can also be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a security support, in particular to an improved security support. BACKGROUND

[0002] The security support is a product used for supporting the car after the car is lifted by the jack, usually comprising a base, a rack and a pawl arranged on one side of the base for adjusting the position of the rack and supporting the rack; in the actual use process, the pawl is used as a supporting piece alone, and the load bearing capacity is limited, and once the load is too large, mechanical damage is prone to occur, resulting in damage of the security support, and even a safety accident occurs during use.

[0003] Therefore, the existing security support adds a safety pin as a supporting piece, and the safety pin is inserted into the base and the rack to achieve the safety protection effect; the existing safety pin, rack and base are separate components, and are placed separately when not in use or when the safety pin is not used, and are prone to loss during transportation or storage, and once a component is lost, the entire device cannot be used. Therefore, an improved security support is provided. SUMMARY

[0004] The utility model aims at solving the above problems and provides an improved security support.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: an improved security support, comprising a base, a rack movably installed on the base, and a support seat arranged on the rack; characterized in that it further comprises a pawl movably installed on the base for cooperating with the rack to support and limit the position of the rack, a torsion spring for pushing the pawl to a compressed state, and a positioning plate arranged on the base to limit the position of the pawl.

[0006] Further preferably, it further comprises a safety pin movably installed on the base and cooperating with the rack to protect the position of the rack.

[0007] Further preferably, the base is further provided with a chain assembly, the chain assembly comprising a chain, a buckle ring connected to both ends of the chain, and a bolt connected to one side of the buckle ring, one end of the chain being connected to the safety pin through the buckle ring, and the other end being connected to the safety pin through the bolt.

[0008] Further preferably, the chain and the base are connected through the buckle ring.

[0009] Further preferably, it further comprises a handle movably installed on the base.

[0010] Further preferably, the limiting hole is arranged on the base, a flat head screw and an elastic washer are arranged at the limiting hole, and the side of the rack is provided with a limiting slot matched with the flat head screw to prevent the rack from being pulled out.

[0011] The utility model discloses the beneficial effects of: through the setting of torsion spring, the ratchet pawl is always in the state of compression by the extrusion of torsion spring, and after being pressed and opened, the ratchet pawl is reset and compressed automatically by the reset force of torsion spring, thereby ensuring the stability of the ratchet pawl when supporting the rack, avoiding easy disengagement, and when adjusting the rack downward or installing the rack, the ratchet pawl can be opened by pressing the tail end of the ratchet pawl, which is simple and convenient to operate.

[0012] The safety pin is connected with the base, avoiding the problem of loss, and the limiting slot and the flat head screw are arranged to limit the up-down movement stroke of the rack, avoiding overtravel when moving up and down and causing disengagement, and also avoiding the problem of loss caused by disengagement. BRIEF DESCRIPTION OF DRAWINGS

[0013] ATTACHED Figure 1 It is a structural schematic diagram of the utility model;

[0014] ATTACHED Figure 2 It is a sectional view structural schematic diagram of the utility model;

[0015] ATTACHED Figure 3 It is a local enlarged structural schematic diagram of the utility model;

[0016] ATTACHED Figure 4 It is another perspective structural schematic diagram of the utility model;

[0017] ATTACHED Figure 5 It is a local sectional view structural schematic diagram of the utility model.

[0018] Legend: 1, base; 11, positioning plate; 12, limiting hole; 13, flat head screw; 14, elastic washer; 2, rack; 21, support seat; 22, limiting slot; 3, ratchet pawl; 4, torsion spring; 5, safety pin; 6, chain assembly; 61, chain; 62, buckle ring; 63, bolt; 7, handle. DETAILED DESCRIPTION

[0019] Now we will make further description of the improved security support according to the drawings.

[0020] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, such as shown in the drawings, if the certain posture changes, the directional indications also change accordingly.

[0021] In the utility model, unless another explicit provision and limitation, the terms "connect", "fix" and the like should be understood broadly; for example, "fix" can be fixed connection, can also be detachable connection, or be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless another explicit limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0022] Referring to Figures 1-5 The utility model discloses an improved security support, including base 1, the rack 2 of movable installation on base 1 and the support seat 21 of setting on the rack 2, it is characterized by including movable installation on base 1 for with the rack 2 cooperation and the rack 2 is supported and is limited the pawl 3 of action, for the pawl 3 of propelling pawl 3 makes pawl 3 tend to compression state torsion spring 4 and setting on base 1 to pawl 3 position is limited the positioning plate 11 of action,

[0023] The pawl 3 is movably installed on the base 1 through a shaft and an elastic pin, and the torsion spring 4 is installed on the shaft and the pawl 3.

[0024] Through the setting of the torsion spring 4, an outwardly compressing force is applied to the pawl 3, so that the upper end of the pawl 3 is driven to compress inwardly around the pin shaft, so that the pawl 3 is clamped in the teeth of the rack 2 to form support for the position of the rack 2. During the upward extension of the rack 2, a pushing force is applied to the pawl 3 through the inclined surface on the teeth, so that the pawl 3 rotates clockwise without affecting the extension of the rack 2. When the rack 2 needs to move downward, the tail end of the pawl 3 is pressed by an operator to extrude the torsion spring 4, and at the same time, the pawl 3 is driven to rotate clockwise, so that the pawl 3 is no longer clamped on the rack 2, and then the rack 2 can be moved downward.

[0025] In one embodiment, the safety pin 5 movably installed on the base 1 cooperates with the rack 2 to protect the position of the rack 2.

[0026] Through the setting of the safety pin 5, the position of the rack 2 is protected, so that the rack 2 cannot be moved downward due to the pawl 3 or the torsion spring 4 and the like.

[0027] In one embodiment, the base 1 is further provided with a chain assembly 6, the chain assembly 6 includes a chain 61, a buckle 62 connected to both ends of the chain 61, and a bolt 63 connected to one side of the buckle 62. One end of the chain 61 is connected to the safety pin 5 through the buckle 62, and the other end is connected to the safety pin 5 through the bolt 63.

[0028] The chain 61 is also connected with the base 1 through the buckle ring 62;

[0029] The safety pin 5 is connected with the base 1 into an integrated body through the chain assembly 6, and is not easy to lose during carrying or storage, and can also limit and block the two ends of the safety pin 5 during use of the safety pin 5, thereby avoiding disengagement of the safety pin 5; the bolt 63 is convenient for disassembly and assembly with the safety pin, thereby facilitating disassembly and assembly of the safety pin 5 on the base 1.

[0030] In an embodiment, a handle 7 movably mounted on the base 1 is further included; the handle 7 movably connected is convenient for an operator to carry.

[0031] In an embodiment, a limiting hole 12 arranged on the base 1 is further included, the limiting hole 12 is provided with a flat head screw 13 and an elastic washer 14, and a limiting groove 22 for preventing the rack 2 from disengaging is arranged on a side of the rack 2 and matched with the flat head screw 13; the flat head screw 13 and the limiting groove 22 on the side of the rack 2 are arranged to limit the maximum stroke of the upward and downward movement of the rack 2, thereby avoiding overtravel during use and avoiding loss of parts due to the fact that each part is separate during storage or transportation or use.

[0032] The use process of the utility model is as follows: firstly, the pawl 3 is movably mounted on the base 1 through a shaft and an elastic pin, and the tail end of the pawl 3 is pushed by the torsional spring 4, so that the pawl 3 always tends to be in a state of being pressed inwardly;

[0033] During first use, the tail end of the torsional spring 4 is pressed, the pawl 3 is driven to rotate clockwise, until the top of the pawl 3 is attached to the positioning plate 11, then the rack 2 is inserted, until the rack 2 is inserted to the lowest position, the flat head screw 13 and the elastic washer 14 are screwed at the limiting hole 12 of the base 1, and one end of the flat head screw 13 is arranged in the limiting groove 22 of the rack 2; at this time, the rack 2 is assembled;

[0034] During work, the rack 2 is pulled upward, the rack 2 drives the pawl 3 to rotate clockwise through the upward thrust of the inclined surface on the tooth, after the rack 2 is stopped, the pawl 3 supports and fixes the position of the rack 2 through the force of the torsional spring 4, then the safety pin 5 is inserted into the base 1 and matched with the tooth on the rack 2, and then the bolt 63 on one side of the chain 61 is inserted into the safety pin 5.

[0035] When the rack 2 needs to be lowered, the bolt 63 is pulled out of the safety pin 5, then the safety pin 5 is pulled out of the base 1, then the tail end of the torsional spring 4 is pressed, the pawl 3 is driven to rotate clockwise, until the top of the pawl 3 is attached to the positioning plate 11, at this time, the pawl 3 does not block the rack 2, the rack 2 can be lowered, and the pawl 3 can be released after the lowering is completed.

[0036] The protection scope of the utility model is not limited to the above embodiments and transformations. The routine modification and replacement of the skilled in the art based on the content of the embodiments all belong to the protection scope of the utility model.

Claims

1. An improved security bracket, comprising a base (1), a rack (2) movably mounted on the base (1), and a support seat (21) provided on the rack (2); characterized in that It also includes pawl (3) installed on the base (1) for cooperating with the rack (2) to support and limit the rack (2), torsion spring (4) for pushing pawl (3) to make pawl (3) tend to be compressed state, and positioning plate (11) set on the base (1) to limit the position of pawl (3).

2. The improved security stand of claim 1, wherein: It also includes safety pin (5) installed on the base (1) for cooperating with the rack (2) to protect the position of the rack (2).

3. The improved security stand of claim 2, wherein: The base (1) is also installed with chain assembly (6), which contains chain (61), buckle ring (62) connected to both ends of chain (61), and bolt (63) connected to one side of buckle ring (62), one end of chain (61) is connected with safety pin (5) through buckle ring (62), and the other end is connected with safety pin (5) through bolt (63).

4. The improved security stand of claim 3, wherein: The chain (61) and the base (1) are also connected through the buckle ring (62).

5. The improved security stand of claim 1, wherein: It also includes handle (7) installed on the base (1).

6. The improved security stand of claim 1, wherein: It also includes limiting hole (12) set on the base (1), flat head screw (13) and elastic washer (14) installed at limiting hole (12), and the side of rack (2) is provided with limiting groove (22) cooperating with flat head screw (13) to prevent rack (2) from falling out.

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