CN201897028U

CN201897028U - Anti-loosening reinforced fire-fighting joint

Info

Publication number: CN201897028U
Application number: CN2010206333246U
Authority: CN
Inventors: 王秋良
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-25
Filing date: 2010-11-25
Publication date: 2011-07-13
Anticipated expiration: 2020-11-25

Abstract

The utility model provides an anti-loosening reinforced fire-fighting joint which comprises a disc body (1) provided with an arc-shaped chute (2). A buckling claw (3) and a connecting pipe (4) are arranged at two sides of the disc body respectively; and a gap (6) which can contain the buckling claw matched with the joint is arranged beside the inlet end of the chute (2). The anti-loosening reinforced fire-fighting joint is characterized in that a shrinking section (21) is arranged at the other end of the chute (2) and can prevent the buckling claw matched with the joint from sliding out; and a slot bottom (22) of the shrinking section (21) is furled towards the direction of the axis line of the disc body (1) and is a slope. The anti-loosening reinforced fire-fighting joint can be connected firmly; the buckling claw does not come off from the chute due to excessive rotation, and the buckling claw is compactly connected with the chute, thereby generating the self-locking of the joint and ensuring the use effect and the safe operation of the joint; and reinforced dabbers and the distribution positions of the dabbers can effectively improve the water pressure resistance of the fire-fighting joint.

Description

A kind of anticreep reinforced Fire coupling

Technical field

The utility model belongs to the fire service inventory field, particularly relates to a kind of anticreep reinforced Fire coupling.

Background technique

Fire coupling is the requisite fire-fighting accessory of fire-fighting system, is used for water band lengthening, and the connection between water band and fire hydrant, fire-fighting truck and the hydraulic giant.It is internal fastening type that a kind of Fire coupling is arranged, and is to be matched with built-in chute by the button pawl that turns up by two identical Fire couplings to be connected.This existing Fire coupling, comprise the disk body that is provided with arc chute, be respectively arranged with button pawl and connecting tube in the both sides of disk body, two ends at chute are provided with breach, and the gap width of chute entry end is slightly larger than buckles the pawl width, make the button pawl from then on breach axially stretch into, screw-in chute again rotates in a circumferential direction, and the other end of chute be the breach of tail end is to need establish because of manufacturing process, and the width of tail end breach is less than button pawl width, thereby the button pawl can not deviate from from tail end under the normal condition.But pawl rotates excessively or among urgency was flurried, the button pawl skidded off from the tail end breach easily obliquely when detaining, and causes the Fire coupling disengagement, and high pressure water is gone out.In addition, Fire coupling is provided with 4 stiffening ribs the disk body end face is connected with the connecting tube cylindrical, but stiffening rib 90 degree compartment of terrains are circumferentially even, wherein two stiffening ribs lay respectively at two back sides of detaining pawls, overlapping in the axial direction with the button pawl, the arrangement of this stiffening rib can not play reinforing function well, after two Fire couplings engage, have only two stiffening ribs can play the effect of hydraulic pressure resistance on each Fire coupling, and traditional stiffening rib is superficial, only be connected to the root of disk body end face, reinforing function is very limited, thereby requires further improvement.

The model utility content

For addressing the above problem, the utility model proposes a kind of anticreep reinforced Fire coupling, it is firm that it connects, and the button pawl can excessively not rotate from chute and deviate from, and the button pawl engages with chute closely, can ensure using effect and safety work; And can effectively promote the hydraulic pressure resistance ability of Fire coupling.

The purpose of this utility model is achieved in that a kind of anticreep reinforced Fire coupling, comprise the disk body that is provided with arc chute, be respectively arranged with button pawl and connecting tube in the both sides of disk body, stiffening rib is connected the disk body end face with the connecting tube cylindrical, one end of described chute is an entry end, side at entry end is to hold the breach that the interface button pawl that matches enters, be provided with at the other end of described chute and can stop the interface that matches to buckle the reducing section that pawl skids off, the bottom land of this reducing section draws in to the direction of axis line of disk body.

The utility model is provided with the reducing section at the chute afterbody of Fire coupling, because the bottom land of reducing section draws in to the direction of axis line of disk body, radial dimension diminishes, make the button pawl not screw out from the tail end of chute, and bottom land draws in to direction of axis line, make the button pawl can be pressed on the bottom land of gathering, it is more firm tight that two Fire couplings are connected, and ensured using effect and safety work.

Further, the bottom land of described reducing section is the inclined-plane, and the button pawl is pressed on the bottom land of gathering better, produces self-locking, has stopping function.

Further, described button pawl has 2 and circumferentially be distributed on the disk body, and described stiffening rib has 4 and be symmetrically distributed in the both sides of described button pawl.

Further, stressed evenly for making 4 stiffening ribs, and all play the hydraulic pressure resistance effect, and on the axis projection of disk body, the entry end position of described 4 stiffening ribs and described chute and reducing section origination side position overlaid.Promptly 4 stiffening ribs lay respectively at the entry end position of two chutes and the back side at the initial position of afterbody reducing.

Further, the angle of the stiffening rib adjacent with described button pawl and this button pawl is 50 degree～70 degree.

Further, for improving the resistance to compression invigoration effect of stiffening rib, the stiffening rib that connects described disk body end face extends to the outer rim of this disk body end face.

Further, described stiffening rib is roughly triangular in shape.

Beneficial effect:

It is firm to use the utility model to connect, and the button pawl can excessively rotate from chute and deviate from, and the button pawl engages with chute closely, detains pawl and can be pressed on the gathering bottom land of reducing section, and the generation self-locking has ensured using effect and safety work; The stiffening rib of strengthening with and distributing position can effectively promote the hydraulic pressure resistance ability of Fire coupling.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the right elevation of Fig. 1.

Fig. 4 is the A-A revolved section enlarged view of Fig. 3.

Embodiment

Below with reference to accompanying drawing, preferred embodiment of the present utility model is described.

Referring to Fig. 1 to Fig. 3, a kind of anticreep reinforced Fire coupling comprises the disk body 1 that is provided with arc chute 2, is respectively arranged with button pawl 3 and connecting tube 4 in the both sides of disk body 1, and stiffening rib 5 is connected disk body 1 end face with connecting tube 4 cylindricals.Button pawl 3 has 2 and circumferentially be distributed on the disk body 1, and two arc chutes 2 are positioned at the both sides of button pawl 3, and described stiffening rib 5 has 4, and also is symmetrically distributed in the both sides of described button pawl 3.

As shown in Figure 3 and Figure 4, one end of described chute 2 is entry ends, side at entry end is to hold the breach 6 that the interface button pawl that matches enters, breach 6 is at chute 2 entry ends and buckle between the pawl 3, be provided with at the other end of described chute 2 and can stop the interface that matches to buckle the reducing section 21 that pawl skids off, the bottom land 22 of this reducing section 21 draws in to the direction of axis line of disk body 1, the bottom land 22 of reducing section 21 is inclined-planes, the bottom land 22 of reducing section 21 draws in to the direction of axis line of disk body 1, the radial dimension of bottom land 22 diminishes, make the button pawl that matches with it not screw out from the tail end of chute 2, and the button pawl can be pressed on the bottom land 22 of gathering, and it is more firm tight that two Fire couplings are connected; And be the bottom land 22 on inclined-plane, and button pawl 3 can be pressed on the bottom land 22 of gathering better, produce self-locking, have stopping function, ensured using effect and safety work.The bottom land 22 of reducing section certainly, 21 also can be the arc surface that draws in to disk body 1 direction of axis line.

As shown in Figures 2 and 3, on the axis projection of disk body 1, the entry end position and the reducing section 21 origination side position overlaids of described 4 stiffening ribs 5 and described chute 2.As we can see from the figure, the stiffening rib 5 adjacent and the angle a of this button pawl 3 with described button pawl 3 be 60 spend about, promptly 4 stiffening ribs 5 lay respectively at the entry end position of two chutes 2 and the back side at the initial position of afterbody reducing, make 4 stiffening ribs 5 stressed even, and all play the hydraulic pressure resistance effect.

As Fig. 2 and shown in Figure 4, for improving the resistance to compression invigoration effect of stiffening rib 5, the stiffening rib 5 that connects described disk body 1 end face extends to the outer rim of this disk body 1 end face, and stiffening rib 5 is increased, and described stiffening rib 5 is roughly triangular in shape.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. anticreep reinforced Fire coupling, comprise the disk body (1) that is provided with arc chute (2), be respectively arranged with button pawl (3) and connecting tube (4) in the both sides of disk body (1), stiffening rib (5) is connected disk body (1) end face with connecting tube (4) cylindrical, one end of described chute (2) is an entry end, side at entry end is to hold the breach (6) that the interface button pawl that matches enters, it is characterized in that: be provided with at the other end of described chute (2) and can stop the interface that matches to buckle the reducing section (21) that pawl skids off, the bottom land (22) of this reducing section (21) draws in to the direction of axis line of disk body (1).

2. a kind of anticreep reinforced Fire coupling according to claim 1 is characterized in that: the bottom land (22) of described reducing section (21) is the inclined-plane.

3. a kind of anticreep reinforced Fire coupling according to claim 1 is characterized in that: described button pawl (3) has 2 and circumferentially be distributed on the disk body (1), and described stiffening rib (5) has 4 and be symmetrically distributed in the both sides of described button pawl (3).

4. a kind of anticreep reinforced Fire coupling according to claim 3 is characterized in that: on the axis projection of disk body (1), and the entry end position and reducing section (21) the origination side position overlaid of described 4 stiffening ribs (5) and described chute (2).

5. a kind of anticreep reinforced Fire coupling according to claim 3 is characterized in that: the stiffening rib (5) adjacent with described button pawl (3) is 50 degree～70 degree with the angle of this button pawl (3).

6. according to described any anticreep reinforced Fire coupling of claim 1 to 5, it is characterized in that: the stiffening rib (5) that connects described disk body (1) end face extends to the outer rim of this disk body (1) end face.

7. a kind of anticreep reinforced Fire coupling according to claim 6, it is characterized in that: described stiffening rib (5) is roughly triangular in shape.