Self-tightening type automobile fireproof cap

Abstract

The utility model relates to a self-tightening type automobile flash hider which comprises a flash hider body and a connecting pipe, at least two openings are formed in the outer wall of the upper end of the connecting pipe, the tops of the openings extend to the top of the connecting pipe, and an O-shaped spring is arranged on the outer wall of the upper portion of the connecting pipe in a sleeved mode. And limiting arc-shaped plates are arranged above and below the O-shaped spring and are fixed on the outer wall of the connecting pipe. A supporting arm rod is fixed to the outer wall of the connecting pipe, a pry bar is hinged to the outer end of the supporting arm rod, the upper end of the pry bar extends into the inner side of the O-shaped spring, and an avoiding opening for avoiding the upper end of the pry bar is formed in the limiting arc-shaped plate. The opening is formed in the connecting pipe of the flash hider, so that the upper part of the connecting pipe can be elastically contracted, the flash hider can be conveniently mounted and dismounted by matching with the O-shaped spring, and the tedious process that a tool is needed for mounting the existing flash hider is solved.

Description

Technical Field

[0001] The utility model relates to a self-tightening automobile fireproof cap, belonging to the technical field of automobile auxiliary equipment. Background Art

[0002] When transport vehicles enter key fire prevention units or flammable and explosive areas, they need to install fire caps on the exhaust pipes of the vehicles. The existing automobile fire caps include a fire cap body, a connecting pipe connected to the exhaust pipe is installed on the top of the fire cap body, and a clamp is provided at the connecting pipe mouth. When installing and fixing, a wrench and a screwdriver are used to loosen and fix the clamp, which is time-consuming and laborious. For vehicles used for a short time, it is not convenient to install and disassemble. Utility Model Content

[0003] The utility model provides a self-tightening automobile fire cap, which solves the problem that a wrench and a screwdriver are required to loosen and fix the clamp when the fire cap is currently installed and fixed, which is time-consuming and labor-intensive, and is inconvenient to install and disassemble for vehicles used for a short time.

[0004] The utility model relates to a self-tightening automobile fire cap, comprising a fire cap body and a connecting pipe. The upper outer wall of the connecting pipe is provided with at least two openings, the top of the openings extends to the top of the connecting pipe, and an O-shaped spring is sleeved on the outer wall of the upper part of the connecting pipe.

[0005] As a preferred embodiment, the O-shaped spring is provided with limit arc plates at the top and bottom, and the limit arc plates are fixed on the outer wall of the connecting pipe to prevent the O-shaped spring from moving up and down and leaving the tightened position.

[0006] As a preferred embodiment, a support arm is fixed on the outer wall of the connecting pipe, and a pry bar is hinged on the outer end of the support arm. The upper end of the pry bar extends into the inner side of the O-shaped spring, and a clearance opening for avoiding the upper end of the pry bar is provided on the limiting arc plate, so that the O-shaped spring can be opened quickly and conveniently and the connecting pipe can be put on the automobile exhaust pipe.

[0007] As a preferred embodiment, the upper end of the pry bar is a vertical prying section, the lower end of the pry bar is a vertical gripping section, an inclined connecting section is fixed between the vertical gripping section and the vertical prying section, and the inclined connecting section is hinged on the support arm.

[0008] As a preferred embodiment, the top of the connecting tube is provided with a flange facing inward, and the inner wall of the flange is provided with a serrated anti-slip protrusion to better prevent the connecting tube from falling off.

[0009] As a preferred embodiment, a support ring is provided on the lower inner wall of the connecting pipe, and a sealing ring is provided on the inner wall of the support ring to prevent sparks from leaking from the upper part.

[0010] The utility model has the following beneficial effects:

[0011] An opening is provided on the connecting pipe of the fire cap so that the upper part of the connecting pipe can be elastically contracted, and then with the cooperation of the O-type spring, the fire cap can be conveniently installed and removed, thus solving the cumbersome process of the existing fire cap installation which requires the use of tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 Schematic diagram of the top structure of the connecting pipe;

[0014] Figure 3 for Figure 1 Schematic diagram of some structures;

[0015] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 5 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0017] In the figure: 1. fire cap body, 2. connecting pipe, 3. vertical gripping section, 4. support arm, 5. vertical prying section, 6. limiting arc plate, 7. O-type spring, 8. inclined connecting section, 9. pin shaft, 10. opening, 11. flange, 12. avoidance, 13. anti-slip protrusion, 14. support ring, 15. sealing ring. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with embodiments.

[0019] Embodiment 1, as Figures 1 to 3 As shown, the utility model is a self-tightening automobile fire hood, comprising a fire hood body 1 and a connecting pipe 2. The upper outer wall of the connecting pipe 2 is provided with no less than two openings 10, and the openings 10 are preferably provided with three. The top of the opening 10 extends to the top of the connecting pipe 2, and an O-shaped spring 7 is sleeved on the outer wall of the upper part of the connecting pipe 2.

[0020] When in use: pull the O-type spring 7 outward or slide it downward along the connecting pipe 2 to escape from the range of the opening 10, so that the O-type spring 7 is freed from the restraint on the upper part of the connecting pipe 2, and then put the upper end of the connecting pipe 2 on the automobile exhaust pipe, and then loosen the O-type spring 7 or slide it upward along the connecting pipe 2 to tighten the upper part of the connecting pipe 2, and install the fire cap on the automobile exhaust pipe in a self-tightening manner.

[0021] Embodiment 2, on the basis of embodiment 1, the O-shaped spring 7 is provided with limiting arc plates 6 at the top and bottom, and the limiting arc plates 6 are fixed on the outer wall of the connecting pipe 2.

[0022] A support arm 4 is fixed on the outer wall of the connecting pipe 2, and a pry bar is hinged on the outer end of the support arm 4. The upper end of the pry bar extends into the inner side of the O-shaped spring 7, and the limiting arc plate 6 is provided with an avoidance opening 12 for avoiding the upper end of the pry bar.

[0023] The upper end of the pry bar is a vertical prying section 5, and the lower end of the pry bar is a vertical gripping section 3. An inclined connecting section 8 is fixed between the vertical gripping section 3 and the vertical prying section 5, and the inclined connecting section 8 is hinged to the support arm 4 through a pin 9. The distance between the pin 9 and the outer wall of the connecting pipe 2 is about 0.5 cm.

[0024] The top of the connecting tube 2 is provided with an inwardly facing flange 11, and the inner wall of the flange 11 is provided with a serrated anti-slip protrusion 13. When the O-shaped spring 7 is stretched open, the vertical gripping section 3 is gripped with force, and the vertical prying section 5 can lift the O-shaped spring 7 up through the lever effect, and the O-shaped spring 7 is freed from the restraint on the upper end of the connecting tube 2.

[0025] Embodiment 3, on the basis of embodiment 1 or 2, a support ring 14 is provided on the lower inner wall of the connecting pipe 2, and a sealing ring 15 is provided on the inner wall of the support ring 14, and the sealing ring 15 is a fireproof and high temperature resistant sealing ring.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0027] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A self-tightening automobile fire cap, comprising a fire cap body (1) and a connecting pipe (2), characterized in that: The outer wall of the upper end of the connecting pipe (2) is provided with at least two openings (10), the top of the opening (10) extends to the top of the connecting pipe (2), and the outer wall of the upper part of the connecting pipe (2) is sleeved with an O-shaped spring (7).

2. The self-tightening automobile fire cap according to claim 1 is characterized in that: The O-shaped spring (7) is provided with limiting arc plates (6) at the top and bottom, and the limiting arc plates (6) are fixed on the outer wall of the connecting pipe (2).

3. The self-tightening automobile fire hood according to claim 2 is characterized in that: A support arm (4) is fixed on the outer wall of the connecting pipe (2), a pry bar is hinged on the outer end of the support arm (4), the upper end of the pry bar extends into the inner side of the O-shaped spring (7), and a clearance opening (12) for avoiding the upper end of the pry bar is provided on the limiting arc plate (6).

4. The self-tightening automobile fire hood according to claim 3 is characterized in that: The upper end of the pry bar is a vertical prying section (5), and the lower end of the pry bar is a vertical gripping section (3). An inclined connecting section (8) is fixed between the vertical gripping section (3) and the vertical prying section (5), and the inclined connecting section (8) is hinged on the support arm (4).

5. The self-tightening automobile fire cap according to claim 1 is characterized in that: The top of the connecting pipe (2) is provided with a flange (11) facing inward, and the inner wall of the flange (11) is provided with a sawtooth-shaped anti-slip protrusion (13).

6. The self-tightening automobile fire hood according to claim 1, characterized in that: A support ring (14) is provided on the inner wall of the lower part of the connecting pipe (2), and a sealing ring (15) is provided on the inner wall of the support ring (14).

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