CN213512556U - Holding structure - Google Patents

Abstract

The utility model belongs to the technical field of fire-fighting equipment, a structure of holding tightly is disclosed for connect first part and second part, hold the structure of holding tightly and include endotheca, go-between, outer loop and fastener, outside the endotheca was located first part and second part, the go-between cover was located outside the one end of endotheca, outside the other end of endotheca was located to outer loop activity cover, outer loop and go-between spaced each other, the fastener can drive the outer loop and remove and extrude the endotheca in order to hold first part and second part tightly towards the go-between. The utility model provides a structure of holding tightly can guarantee fire hose and hosepipe interface connection's fastness, and the maintenance is changed in the installation of being convenient for again dismantlement.

Description

Holding structure

Technical Field

The utility model belongs to the technical field of fire-fighting equipment, concretely relates to structure of holding tightly.

Background

Fire hose is a hose used to transport high pressure water or fire-retardant liquids such as foam. The two ends of the fire hose are connected with hose connectors, and the fire hose can be connected with another hose to prolong the distance or connected with a nozzle to increase the liquid injection pressure.

The existing fire hose and hose connector connection technology mainly comprises the steps that a hose is sleeved on a connector and is tightly wound by an iron wire and is clamped by a hose clamp or is compressed by aluminum sheets. Wherein, the iron wire winding is divided into manual winding and equipment winding. When the pressure of the fire-fighting water source is higher, the fire-fighting water source often slips or leaks by manually winding iron wires or connecting the fire-fighting water source by using a hose clamp. The equipment twines the iron wire or all need use special equipment with the aluminium skin mode of compressing tightly, unable manual installation, in actual fire control in-use, the interface appears damaged or the hosepipe local damage appears, and the field treatment is almost impossible, and it is troublesome to change or maintain.

Therefore, a holding structure is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure of holding tightly can guarantee fire hose and hosepipe interface connection's fastness, and the maintenance is changed in the installation of being convenient for again dismantlement.

To achieve the purpose, the utility model adopts the following technical proposal:

a clasping structure for connecting a first component and a second component, the clasping structure comprising:

the inner sleeve is sleeved outside the first part and the second part;

the connecting ring is sleeved outside one end of the inner sleeve;

the outer ring is movably sleeved outside the other end of the inner sleeve, and the outer ring and the connecting ring are spaced;

and the fastener can drive the outer ring to move towards the connecting ring and press the inner sleeve to clasp the first component and the second component.

Preferably, the outer wall of the inner sleeve is a first outer conical surface, and the small-diameter end of the first outer conical surface is away from the connecting ring.

Preferably, the inner wall of the outer ring is a first inner tapered surface, and the small-diameter end of the first inner tapered surface is arranged away from the connecting ring.

Preferably, the taper angle of the first outer taper profile is equal to the taper angle of the first inner taper profile.

Preferably, the maximum outer diameter of the inner sleeve is greater than the maximum inner diameter of the outer ring.

Preferably, the connection ring is integrally formed with the inner sleeve.

Preferably, the connecting ring is movably sleeved outside the inner sleeve, the inner wall of the connecting ring is a second inner conical profile, and the small-diameter end of the second inner conical profile is arranged away from the outer ring.

Preferably, the fastener includes a plurality of bolts, and the bolts are simultaneously inserted through the connection ring and the outer ring.

Preferably, the connecting ring is provided with a plurality of through holes uniformly distributed around the circumference of the central axis thereof, the outer ring is provided with a plurality of threaded holes, and each bolt penetrates through one through hole and one threaded hole.

Preferably, a lubricating layer is arranged between the inner sleeve and the outer ring.

The utility model has the advantages that:

the utility model provides a hold structure tightly, outside first part and second part were located to interior endotheca, the go-between cover was located outside the one end of endotheca, outside the other end of endotheca was located to outer loop movable sleeve, outer loop and go-between spaced each other, the fastener can drive the outer loop and remove towards the go-between and extrude the endotheca to the center in order to hold first part and second part tightly to link together first part and second part. The utility model provides a structure of holding tightly can guarantee fire hose and hosepipe interface connection's fastness, and the maintenance is changed in the installation of being convenient for again dismantlement.

Drawings

Fig. 1 is a front view of a clasping structure provided by a first embodiment of the present invention;

fig. 2 is an end view of a connection ring according to an embodiment of the present invention;

fig. 3 is an exploded view of a clasping structure provided in the first embodiment of the present invention;

fig. 4 is a cross-sectional view of an inner sleeve and a connection ring according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of an outer ring according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a clasping structure provided by the second embodiment of the present invention.

In the figure:

1. an inner sleeve; 2. a connecting ring; 3. an outer ring; 4. a fastener;

11. a first outer conical surface; 21. a through hole; 31. a first inner tapered surface; 32. a threaded bore.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly and can include, for example, a mounted connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 5, the present embodiment provides a clasping structure for connecting a first component and a second component, the clasping structure comprises an inner sleeve 1, a connecting ring 2, an outer ring 3 and a fastener 4, wherein the inner sleeve 1 is sleeved outside the first component and the second component; the connecting ring 2 is sleeved outside one end of the inner sleeve 1; the outer ring 3 is movably sleeved outside the other end of the inner sleeve 1, and the outer ring 3 and the connecting ring 2 are spaced from each other; the fastener 4 can drive the outer ring 3 to move towards the connection ring 2 and press the inner sleeve 1 to clasp the first and second components.

The first and second components in this embodiment may be any two components that need to be connected to each other. For example, the first component and the second component can be a fire hose and a hose connector respectively, the fire hose is sleeved outside the hose connector, the inner sleeve 1 is sleeved outside the fire hose, the fastener 4 is utilized to drive the outer ring 3 to move towards the connecting ring 2, and the inner sleeve 1 is extruded and deformed towards the center, so that the pressure between the fire hose and the hose connector is increased, the friction force between the fire hose and the hose connector is increased, and the connection firmness of the fire hose and the hose connector is ensured. The holding structure that this embodiment provided can guarantee the fastness of fire hose and hosepipe interface connection, and the maintenance is changed in the installation of being convenient for again dismantlement.

As shown in fig. 4, the outer wall of the inner sleeve 1 is a first outer tapered surface 11, and the small diameter end of the first outer tapered surface 11 is away from the connecting ring 2. Correspondingly, the inner wall of the outer ring 3 can be an inner cylindrical surface, the outer ring 3 is sleeved from the small-diameter end of the inner sleeve 1, the distance between the inner cylindrical surface and the first outer conical surface 11 is gradually reduced until the inner cylindrical surface and the first outer conical surface are mutually extruded in the process of moving towards the connecting ring 2, and the inner sleeve 1 is inwards deformed by extrusion force to connect the first component and the second component together.

Alternatively, as shown in fig. 5, the inner wall of the outer ring 3 is a first inner tapered surface 31, and the small diameter end of the first inner tapered surface 31 is disposed away from the connection ring 2. The arrangement of the first inner tapered surface 31 enables the outer ring 3 to move more smoothly relative to the inner sleeve 1, and prevents the edges and corners at the end part of the inner cylindrical surface from blocking the movement.

Specifically, the maximum outer diameter of the inner sleeve 1 is larger than the maximum inner diameter of the outer ring 3. In the process that the outer ring 3 moves from the small-diameter end to the large-diameter end of the inner sleeve 1, when the outer diameter of the inner sleeve 1 is larger than the inner diameter of the outer ring 3, the inner sleeve 1 is deformed by mutual extrusion of the outer ring and the inner ring. In this embodiment, in order to deform the inner sleeve 1 and keep the outer ring 3 unchanged under the mutual pressing force, the radial thickness of the inner sleeve 1 is set to be thinner and the radial thickness of the outer ring 3 is set to be thicker.

Optionally, the taper angle of the first outer taper profile 11 is equal to the taper angle of the first inner taper profile 31. The taper angles are set to be the same, so that the first outer tapered surface 11 and the first inner tapered surface 31 can be tightly attached, when the outer ring 3 moves relative to the inner ring 1, all inner walls of the outer ring 3 extrude the outer wall of the inner ring 1, and therefore the inner ring 1 is uniformly deformed to extrude the first component and the second component. As shown in fig. 1, the axial length of the outer ring 3 is smaller than that of the inner sleeve 1, so that a gap is formed between the outer ring 3 and the connection ring 2 when the inner sleeve 1 is initially sleeved with the outer ring 3. The minimum diameter of the first outer conical surface 11 is equal to the minimum diameter of the first inner conical surface 31, when the outer ring 3 is sleeved at the small-diameter end of the inner sleeve 1, the inner wall and the outer wall of the inner sleeve are just attached to each other, when the inner sleeve 1 starts to move relatively, the outer ring 3 starts to generate extrusion force on the inner sleeve 1, and when the inner sleeve moves further, the extrusion force is gradually increased, so that the connection of the first component and the second component is completed.

Specifically, the fastener 4 includes a plurality of bolts, which are simultaneously inserted through the connection ring 2 and the outer ring 3. A plurality of through holes 21 are uniformly distributed on the connecting ring 2 around the circumference of the central axis thereof, a plurality of threaded holes 32 are formed on the outer ring 3, and each bolt penetrates through one through hole 21 and one threaded hole 32. Bolts are inserted into the threaded holes 32 of the outer ring 3 through the through holes 21 of the connection ring 2, the bolts are screwed into the threaded holes 32, and the outer ring 3 is driven to move toward the connection ring 2 by rotating the bolts, so that the bolts and the connection ring are pressed against each other. In this embodiment, be provided with four bolts, can guarantee firm connection, can not cause complex operation because of the quantity is too much again.

Alternatively, the connection ring 2 is integrally formed with the inner sleeve 1. It is ensured that the outer ring 3 can be driven towards the connection ring 2 when the bolt is turned.

In order to ensure that the outer ring 3 can move smoothly on the inner sleeve 1, a lubricating layer is arranged between the inner sleeve 1 and the outer ring 3. In this embodiment, lubricating oil is applied as a lubricating layer between the inner sleeve 1 and the outer ring 3.

Example two

Fig. 6 shows the second embodiment, and for the sake of simplicity, only the differences between the second embodiment and the first embodiment will be described. The difference lies in that the connecting ring 2 is movably sleeved outside the inner sleeve 1, the inner wall of the connecting ring 2 is a second inner conical profile, and the small-diameter end of the second inner conical profile is arranged away from the outer ring 3. Correspondingly, the outer wall of the one end of being connected with go-between 2 on endotheca 1 is the outer cone profile of second, and the path end of the outer cone profile of second deviates from outer loop 3 and sets up for the outer cone profile of second cooperatees with the outer cone profile of second, and when rotating the bolt, go-between 2 and outer loop 3 are close to each other and all extrude inner ring 1, make endotheca 1 take place even deformation, can play better effect of holding tightly.

EXAMPLE III

For the sake of simplicity, only the points of difference between the third embodiment and the first embodiment will be described. The difference point lies in, endotheca 1 includes ring and a plurality of flexure strip, a plurality of flexure strip hoop distributes in the one end tip of ring, and axial extension along the ring, and have the clearance between the adjacent flexure strip, the ring is located to go-between 2 covers, outer loop 3 is emboliaed from the one end that the flexure strip deviates from the ring, the diameter of outer loop 3 is less, be close to the in-process of go-between 2 gradually, inwards extrude and make a plurality of flexure strips be close to each other, extrude first part and second part, make the two link together.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. A clasping structure for connecting a first component and a second component, said clasping structure comprising:

the inner sleeve (1) is sleeved outside the first part and the second part;

the connecting ring (2) is sleeved outside one end of the inner sleeve (1);

the outer ring (3) is movably sleeved outside the other end of the inner sleeve (1), and the outer ring (3) and the connecting ring (2) are spaced;

a fastener (4) capable of driving the outer ring (3) to move towards the connecting ring (2) and pressing the inner sleeve (1) to clasp the first component and the second component;

the connecting ring (2) is movably sleeved outside the inner sleeve (1), the inner wall of the connecting ring (2) is a second inner conical profile, and the small-diameter end of the second inner conical profile deviates from the outer ring (3).

2. The structure according to claim 1, wherein the outer wall of the inner sleeve (1) is a first outer tapered surface (11), and a small diameter end of the first outer tapered surface (11) is disposed away from the connecting ring (2).

3. The structure according to claim 2, wherein the inner wall of the outer ring (3) is a first inner tapered surface (31), and a small diameter end of the first inner tapered surface (31) is disposed away from the connecting ring (2).

4. A hugging structure according to claim 3, wherein the cone angle of said first outer cone profile (11) is equal to the cone angle of said first inner cone profile (31).

5. The structure according to claim 1, wherein the maximum outer diameter of the inner shell (1) is greater than the maximum inner diameter of the outer ring (3).

6. The structure according to claim 1, wherein said fastener (4) comprises a plurality of bolts passing through said connection ring (2) and said outer ring (3) simultaneously.

7. The clasping structure as claimed in claim 6, wherein a plurality of through holes (21) are uniformly distributed on the connecting ring (2) around the circumference of the central axis thereof, a plurality of threaded holes (32) are formed on the outer ring (3), and each bolt is inserted into one through hole (21) and one threaded hole (32).

8. A hugging structure according to any one of claims 1-7, characterized in that a lubricating layer is provided between said inner sleeve (1) and said outer ring (3).

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