KR102429197B1 - Fire extinguishing water spray nozzle clamping structure for building fire extinguishing - Google Patents

Abstract

The present invention relates to a firefighting water spray nozzle clamping device for firefighting of a building, which firmly fixes a spray nozzle to be stably used, comprising: an installation box having an elastic pad and upper and lower rails; a spray nozzle fixing means including an upper clamp and a connection bar; and an upper cover provided with a plurality of fastening protrusions.

Description

Fire extinguishing water spray nozzle clamping structure for building fire extinguishing

The present invention relates to a fire extinguishing water spray nozzle clamping device for fire fighting in a building, and more specifically, a spray nozzle fixing means that can be used by combining the spray nozzle from the inside of an installation box that is fixedly installed on the inside of a building can be conveniently pulled out and used. It relates to a fire-fighting water spray nozzle clamping device for a building that can firmly fix the spray nozzle that sprays fire-fighting water and achieve stable use by making it possible.

Buildings are equipped with various firefighting equipment to extinguish fires.

In this case, in order to extinguish a fire generated inside the building as quickly as possible, the fire fighting device provided in the building is generally provided with a simple fire extinguishing device such as a fire extinguisher.

However, fire extinguishers such as fire extinguishers provided in buildings can partially respond to fires that occur indoors, but when fires in buildings have spread significantly, it is difficult to cope with fires with fire extinguishers.

Accordingly, in order to easily extinguish a fire occurring in a building, a method of spraying fire extinguishing water to the outside of a building using a fire hose connected to a fire hydrant or a fire engine installed outside is widely used.

This is to effectively suppress a fire occurring in a building by spraying a large amount of water for fire extinguishing to the point where the fire occurred.

For example, conventionally, as shown in document (1), a method for suppressing a fire generated in a building using a fire hose capable of spraying fire extinguishing water and a spray nozzle has been proposed and used.

However, even in the case of using such a fire hose and spray nozzle, due to the spray pressure of the fire extinguishing water sprayed through the fire hose, there is a problem that the user who holds the spray nozzle and sprays must endure the spray pressure of the fire extinguishing water continuously. In the case of a weak user or an experienced user, there was a problem in that it was difficult to use the spray nozzle while firmly gripping it.

In addition, when the fire hose and the spray nozzle flow due to the spray pressure of the fire extinguishing water, there may be a problem that the metal spray nozzle may hit the user's body and cause damage.

(1) Republic of Korea Patent No. 10-2136968 (July 16, 2020)

The present invention has been devised to solve the above problems, and the objects of the present invention are as follows.

First, a spray nozzle capable of spraying fire-fighting water is conveniently mounted to achieve a stable spray of fire-fighting water.

Second, through a structure that is installed to be embedded in the outer wall of the building, it does not damage the aesthetics of the building in normal times and achieves stable storage.

Third, even a user with weak physical strength or a non-skilled person can conveniently mount the spray nozzle through which fire extinguishing water is sprayed to achieve stable and convenient use.

Fourth, the spray nozzle that sprays fire-fighting water can be firmly mounted and used, so that the spraying efficiency of fire-extinguishing water can be increased to facilitate suppression of fires occurring in buildings.

Fifth, it is possible to prevent various safety accidents caused by the flow of the injection nozzle made of metal by minimizing the shaking of the injection nozzle due to the injection pressure of the fire extinguishing water.

In order to achieve the above object, the present invention is installed to be inserted into the front of the wall of a building, a plurality of fixing protrusions are provided on the rear side, a plurality of coupling grooves are formed in the rim portion of the open front, and on the inner surface adjacent to the fixing protrusions An installation box provided with an elastic pad and provided with an upper rail and a lower rail on the inner upper and lower surfaces, an upper guide body slidably coupled to the upper rail and formed with a hinge hole at one side, and slidably coupled to the lower rail A guide hole is formed on one side and a lower guide body having a coupling protrusion on the front side, a coupling hole into which the coupling protrusion is inserted is provided on the rear side, and a seating groove is formed in which the lower end of the spray nozzle is coupled to the upper surface in a semicircular annular shape on the front side. A lower clamp having a plurality of support grooves is formed in an upper edge portion adjacent to the seating groove, and an upper groove surrounding the upper portion of the spray nozzle is formed in a portion corresponding to the seating groove in a semicircular annular shape covering the upper portion of the lower clamp. and an upper clamp provided with a plurality of support protrusions on a lower edge portion corresponding to the support groove, and connection holes corresponding to the hinge hole and the guide hole are provided at both ends in the longitudinal direction through a hinge pin inserted into the connection hole. A spray nozzle fixing means consisting of a connection bar installed to connect the hinge hole and the guide hole, and a plurality of fastening protrusions at a portion corresponding to the coupling groove, including an upper cover detachably coupled to the open front surface of the installation box can be configured.

At this time, a support hole is further formed at the lower end of the lower clamp, and a box shape with an open front is formed in the lower portion of the installation box, and a storage box having a plurality of insertion grooves formed on the open front edge portion, and a portion corresponding to the insertion groove A lower cover provided with a plurality of insertion protrusions and detachably coupled to the front surface of the storage box is further provided, and a support means for firmly fixing the position of the lower clamp by being coupled to the support hole inside the storage box is stored, The support means includes a connector having an upper protrusion inserted into the support hole on its upper surface and a lower hole on its lower surface, a connecting bar having a connecting protrusion inserted into the lower hole on its upper surface and an insertion hole on its lower surface, and the insertion A joint protrusion coupled to the ball is provided on the upper surface and the lower surface may be configured to include a moving plate provided with a plurality of wheels.

In addition, a rear hole to which the coupling protrusion of the lower guide body is coupled is provided on the inner surface of the installation box, and a front protrusion coupled to the coupling hole of the lower clamp is provided on the front side, so that the lower guide body and the lower clamp are connected. A connection bar that is detachably coupled to the may be further provided.

In addition, a fixing ring is provided on the front surfaces of the upper rail and the lower rail, a plurality of connection rings are further provided on the upper and lower portions of the lower clamp, and the inner surface of the installation box connects the fixing ring and the connection ring A plurality of support wires may be further provided.

The present invention as described above can obtain the following effects.

First, it is possible to achieve stable spraying of fire-fighting water by conveniently mounting a spray nozzle capable of spraying fire-fighting water.

Second, through the structure installed to be embedded in the outer wall of the building, it is possible to achieve stable storage without impairing the aesthetics of the building in normal times, and to conveniently withdraw it for use.

Third, even a user with weak physical strength or a non-skilled person can achieve stable and convenient use by conveniently mounting the spray nozzle through which fire extinguishing water is sprayed.

Fourth, by making it possible to use the spray nozzle that sprays fire-fighting water by firmly mounting it, it is possible to increase the spraying efficiency of the fire-extinguishing water to easily suppress the fire occurring in the building.

Fifth, by minimizing the shaking of the injection nozzle due to the injection pressure of the fire extinguishing water, various safety accidents caused by the flow of the injection nozzle made of metal can be prevented.

1 is a combined cross-sectional view showing a state in which a clamping device for a fire extinguishing water spray nozzle for a building according to the present invention is coupled.
Figure 2 is another combined cross-sectional view showing a state in which the present invention is a fire extinguishing water spray nozzle clamping device for a building of the present invention is coupled.
Figure 3 is another combined cross-sectional view showing a state in which the present invention, the fire extinguishing water spray nozzle clamping device for the building of the present invention is coupled.
4 is a combined cross-sectional view showing a state in which the clamping device for the fire extinguishing water spray nozzle for the building according to the present invention is coupled.
5 is a cross-sectional view showing the state of use of the fire extinguishing water spray nozzle clamping device for the building of the present invention.
6 is a cross-sectional view of another use state showing the use state of the present invention, the fire extinguishing water spray nozzle clamping device for the building of the present invention.
7 is another cross-sectional view showing the use state of the present invention of the fire extinguishing water spray nozzle clamping device for a building according to the present invention.
8 is another cross-sectional view showing the use state of the present invention of the fire extinguishing water spray nozzle clamping device for the building of the present invention.

The terms or words used in the present specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, but 'the inventor may properly define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of 'can be'.

In addition, the embodiments described in this specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so they can be substituted at the time of the present application It should be understood that there may be various equivalents and variations.

In addition, before explaining the present invention, the portion where the coupling is made in the direction of the upper cover in the direction of the installation box installed on the wall of the building is referred to as the front side, and the portion where the coupling is made in the direction of the installation box in the direction of the upper cover is the rear side. to explain it.

The present invention is installed to be inserted into the front of the wall (1) of the building, a plurality of fixing protrusions (11) are provided on the rear side, and a plurality of coupling grooves (12) are formed in the edge portion of the open front surface, and the fixing protrusions ( 11) and an installation box 10 provided with an elastic pad 13 on the inner surface adjacent to the inner surface and an upper rail 14 and a lower rail 15 on the inner upper and lower surfaces, and the upper rail 14 is slidable. The upper guide body 21 is coupled to one side and a hinge hole 21a is formed on one side, and is slidably coupled to the lower rail 15, a guide hole 22a is formed on one side, and a coupling protrusion 22b is formed on the front side. The provided lower guide body 22 and the coupling hole 23a into which the coupling protrusion 22b is inserted are provided on the rear side, and the front side has a semicircular annular shape, and the lower end of the spray nozzle 2 is coupled to the upper surface. The lower clamp 23 is formed with a plurality of support grooves 23c in the upper edge portion adjacent to the seating groove 23b, and a semicircular ring shape covering the upper portion of the lower clamp 23 is formed. An upper surface groove 24a surrounding the upper portion of the injection nozzle 2 is formed in a portion corresponding to the seating groove 23b, and a plurality of support protrusions 24b are provided in the lower edge portion corresponding to the support groove 23c. The upper clamp 24, and the hinge hole 21a and the connection hole 25a corresponding to the guide hole 22a are provided at both ends in the longitudinal direction, and the hinge pin 25b inserted into the connection hole 25a. A plurality of fastening protrusions (20) comprising a connecting bar (25) installed to connect the hinge hole (21a) and the guide hole (22a) through the coupling groove (12) 31) is provided and is configured to include an upper cover 30 that is detachably coupled to the open front of the installation box 10 .

The installation box 10 is to be fixedly installed on the front side of the wall 1 of the building, and is preferably installed to achieve a state inserted inside the building during the construction process of the building.

In addition, the installation box 10 is formed in a box shape with an open front, and a plurality of fixing protrusions 11 are provided on the rear surface of the installation box 10 to install the installation box 10 in a building. , the position of the installation box 10 is configured to maintain a firmly fixed state.

And an elastic pad 13 is provided on the inner surface of the installation box 10, so that even when the injection nozzle fixing means 20, which will be described in detail below, is installed inside the installation box 10, in the installation box 10 The rear surface of the injection nozzle fixing means 20 is strongly struck to prevent damage to the installation box 10 .

In addition, as shown in FIGS. 1 to 4 , the upper rail 14 and the lower rail 15 are installed to face each other on the inner upper and lower surfaces of the installation box 10 .

In addition, the upper rail 14 and the lower rail 15 are provided so that the upper guide body 21 and the lower guide body 22 of the injection nozzle fixing means 20, which will be described in detail below, can be easily installed. will be.

In addition, the injection nozzle fixing means 20, as shown in FIGS. 1 to 4, is slidably coupled to the upper rail 14 and has an upper guide body 21 having a hinge hole 21a on one side thereof, The lower guide body 22 is slidably coupled to the lower rail 15, a guide hole 22a is formed on one side and a coupling protrusion 22b is provided on the front side, and the coupling protrusion 22b is inserted. A ball 23a is provided on the rear surface, and a seating groove 23b to which the lower end of the spray nozzle 2 is coupled is formed on the front surface in a semicircular annular shape, and a plurality of upper edge portions adjacent to the seating groove 23b The lower clamp 23 in which the support groove 23c is formed, and the upper surface surrounding the upper part of the spray nozzle 2 in a portion corresponding to the seating groove 23b in a semicircular annular shape covering the upper part of the lower clamp 23 . The groove 24a is formed and the upper clamp 24 provided with a plurality of support protrusions 24b is provided on the lower edge of the lower surface corresponding to the support groove 23c, and the hinge hole 21a and the guide hole 22a. Corresponding connection holes 25a are provided at both ends in the longitudinal direction and are installed to connect the hinge holes 21a and the guide holes 22a through the hinge pins 25b inserted into the connection holes 25a. It consists of (25).

The upper guide body 21 is slidably coupled to the upper rail 14 installed inside the installation box 10 , and the lower guide body 22 is a lower portion installed inside the installation box 10 . It is slidably coupled to the rail (15).

In addition, a hinge hole 21a is formed on one side of the upper guide body 21, and a guide hole 22a is formed on one side of the lower guide body 22, so that the upper rail 14 As shown in FIGS. 4 to 8, the upper guide body 21 and the lower guide body 22 installed opposite to each other on the lower rail 15 and the lower rail 15 have connecting holes 25a formed at both ends in the longitudinal direction. ) through which it is installed.

In this configuration, after the connection hole 25a of the connection bar 25 is positioned to correspond to the hinge hole 21a and the guide hole 22a, a hinge pin 25b is installed in the connection hole 25a. It is configured such that the connecting bar 25 is movably coupled to the hinge hole 21a and the guide hole 22a by coupling.

Accordingly, the upper guide body 21 and the lower guide body 22 installed on the upper rail 14 and the lower rail 15 are moved from the inside of the installation box 10 as shown in FIGS. 5 to 8 . Even when this is made, through the configuration of the connecting bar 25 connecting the upper guide body 21 and the lower guide body 22, the installation position of the lower guide body 22 can be firmly maintained. , even when the spray nozzle 2 is coupled to the lower clamp 23 and the upper clamp 24 installed on the front surface of the lower guide body 22, the pressure of the water sprayed through the spray nozzle 2 is applied to the lower This is to prevent the coupling position of the guide body 22 from being changed and achieve more stable use.

In addition, a coupling protrusion 22b is provided on the front surface of the lower guide body 22 so that the lower clamp 23 is easily installed on the front surface of the lower guide body 22, and the lower clamp 23 is A coupling hole 23a into which the coupling protrusion 22b is inserted is provided on the rear surface so that the coupling protrusion 22b and the coupling hole 23a are coupled to each other, as shown in FIGS. 2 to 8 , the lower guide body The lower clamp 23 is easily installed on the front side of (22).

And as shown in FIGS. 1 to 4, the front surface of the lower clamp 23 is formed in a semicircular annular shape, and a seating groove 23b is formed on the top surface, and a plurality of upper edge portions adjacent to the seating groove 23b have a plurality of rings. A support groove (23c) is formed and configured.

In this configuration, after coupling the lower end of the injection nozzle 2 to the seating groove 23b of the lower clamp 23 to be seated, the upper portion of the injection nozzle 2 coupled to the seating groove 23b is covered. The upper clamp 24 is installed to be coupled to the lower clamp 23 .

When the above configuration is described in detail, the upper clamp 24 is formed in a semicircular annular shape corresponding to the lower clamp 23, as shown in FIGS. 1 and 2, and a portion corresponding to the seating groove 23b. The upper surface groove (24a) is formed, and a plurality of support protrusions (24b) are provided on the lower edge portion.

That is, as shown in FIGS. 4 to 8, when the lower end of the injection nozzle 2 is coupled to the seating groove 23b of the lower clamp 23, the upper clamp 24 is the injection nozzle ( 2) is coupled to surround the upper surface, and at this time, the support protrusion 24b of the upper clamp 24 is inserted into the support groove 23c of the lower clamp 23, and the lower clamp 23 and the upper clamp 24 are inserted. ) between the injection nozzles (2) can be maintained in a firmly installed state.

In addition, the upper cover 30 is configured to prevent the fastening protrusion 31 is coupled to the coupling groove 12 to prevent the open front portion of the installation box 10 from being exposed to the outside.

This is, as shown in FIG. 4, in normal times, the injection nozzle fixing means 20 is kept in a state accommodated inside the installation box 10, and when it is intended to be used, the upper cover 30 is installed. After separating from the box 10, it is possible to achieve use by moving the injection nozzle fixing means 20 installed on the inside of the installation box 10 to the front of the installation box 10.

On the other hand, as in FIGS. 1 to 8 , a support hole 23d is further formed at the lower end of the lower clamp 23 , and the lower portion of the installation box 10 has a box shape with an open front, open A storage box 41 having a plurality of insertion grooves 41a is formed on the front edge portion thereof, and a plurality of insertion protrusions 42a are provided at a portion corresponding to the insertion groove 41a, and are detachable from the front surface of the storage box 41 . A lower cover 42 to be coupled is further provided, and the inner side of the storage box 41 is coupled to the support hole 23d to firmly fix the position of the lower clamp 23 ( 50) is stored and constructed.

At this time, the support means 50 includes a connector 51 having an upper protrusion 51a inserted into the support hole 23d on its upper surface and a lower hole 51b on its lower surface, and the lower hole 51b. A connecting protrusion (52a) to be inserted into the upper surface is provided on the lower surface, and a connecting bar (52) having an insertion hole (52b) on the lower surface, and a joint protrusion (53a) coupled to the insertion hole (52b) are provided on the upper surface and the lower surface is configured to include a moving plate 53 provided with a plurality of wheels 53b.

The storage box 41 is installed at the lower end of the installation box 10 so that the support means 50 can be accommodated inside and stored, and the lower cover 42 is formed on the front surface of the storage box 41 . The insertion protrusion (42a) is coupled to the insertion groove (41a) so that it is detachably installed on the open front of the storage box (41).

And as shown in FIGS. 7 and 8 , the support means 50 is normally accommodated inside the storage box 41 for storage, and when intended to be used, it is withdrawn from the inside of the storage box 41 . It is configured to be installed at the lower end of the lower clamp (23).

To describe this configuration in more detail, when the injection nozzle 2 is installed into the seating groove 23b of the lower clamp 23 to achieve use, the support hole 23d formed at the lower end of the lower clamp 23 is used. The upper protrusion 51a of the connector 51 constituting the support means 50 is installed to be inserted, and at the same time, it is provided on the upper surface of the connecting bar 52 through the lower hole 51b of the connector 51 . The connecting protrusion 52a is configured to be coupled, and the joint protrusion 53a provided on the upper surface of the moving plate 53 is coupled to the insertion hole 52b formed on the lower surface of the connecting bar 52 .

According to the above configuration, as shown in FIG. 8 , a connector 51 , a connecting bar 52 , and a moving plate 53 are installed at the lower end of the lower clamp 23 to firmly secure the lower end of the lower clamp 23 . The lower clamp 23 through the plurality of wheels 53b provided on the moving plate 53 responds flexibly to this even when moving from the front of the installation box 10. It is configured to achieve the use and support of the lower clamp (23).

In addition, as shown in FIGS. 1 to 8 , a rear hole 61 to which the coupling protrusion 22b of the lower guide body 22 is coupled is provided on the inner surface of the installation box 10 on the rear surface, and the lower clamp A front projection 62 coupled to the coupling hole 23a of the 23 is provided on the front side, and a connection bar 60 that is detachably coupled to the connection portion of the lower guide body 22 and the lower clamp 23 is provided. It is further provided and configured.

In this configuration, as in FIG. 4 , the connection bar 60 is accommodated inside the installation box 10 , and as shown in FIGS. 7 and 8 , the lower guide body 22 and When it is desired to adjust the coupling position of the lower clamp 23, the coupling protrusion 22b of the lower guide body 22 is coupled to the rear hole 61 of the connection bar 60, and the connection bar 60 ) of the front protrusion 62 is coupled to the coupling hole 23a of the lower clamp 23, so that the connection bar 60 is coupled to the connection portion between the lower guide body 22 and the lower clamp 23, and the lower It is configured to be able to achieve use while adjusting the installation position of the clamp 23 .

In addition, as shown in FIGS. 1 to 8 , a fixing ring 71 is provided on the front surfaces of the upper rail 14 and the lower rail 15 , and a plurality of upper and lower portions of the lower clamp 23 are provided. The connecting ring 72 is further provided and configured, and a plurality of support wires 73 connecting the fixing ring 71 and the connecting ring 72 are further provided on the inner surface of the installation box 10 . do.

In this configuration, as shown in FIGS. 6 to 8, the fixing ring ( Through the configuration of the support wire 73 connecting the 71) and the connecting ring 72, the installation position of the lower clamp 23 is firmly maintained and stable use can be achieved.

Although the present invention has been shown and described with respect to specific embodiments, it is recognized in the art that various improvements and modifications may be made to the present invention without departing from the spirit or scope of the present invention as provided by the following claims. It will be apparent to those of ordinary skill in the art.

1: wall 10: installation box
11: fixing protrusion 12: coupling groove
13: elastic pad 14: lower rail
15: upper rail 20: injection nozzle fixing means
21: upper guide body 21a: hinge hole
22: lower guide body 22a: guide hole
22b: coupling protrusion 23: lower clamp
23a: coupling hole 23b: seating groove
23c: support groove 23d: support hole
24: upper clamp 24a: upper surface groove
24b: support protrusion 25: connecting bar
25a: connector 25b: hinge pin
30: upper cover 31: fastening protrusion
41: storage box 41a: insertion groove
42: lower cover 42a: insertion projection
50: support means 51: connector
51a: upper projection 52: connecting bar
52a: connecting projection 52b: insertion hole
53: moving plate 53a: joint projection
53b: wheel 60: connecting bar
61: rear hole 62: front projection
71: fixing ring 72: connecting ring
73: support wire

Claims (4)

It is installed to be inserted into the front surface of the wall (1) of the building, a plurality of fixing protrusions 11 are provided on the rear side, and a plurality of coupling grooves 12 are formed in the edge portion of the open front surface, and adjacent to the fixing protrusions 11 . An installation box 10 provided with an elastic pad 13 on the inner surface and an upper rail 14 and a lower rail 15 on the inner upper and lower surfaces,
The upper guide body 21 is slidably coupled to the upper rail 14 and has a hinge hole 21a formed on one side thereof, and is slidably coupled to the lower rail 15 and a guide hole 22a is formed on one side. and a lower guide body 22 having a coupling protrusion 22b on the front side, a coupling hole 23a into which the coupling protrusion 22b is inserted, and a semicircular annular shape on the front surface of the injection nozzle ( 2) a lower clamp 23 in which a seating groove 23b to which the lower end is coupled is formed and a plurality of support grooves 23c are formed in an upper edge portion adjacent to the seating groove 23b, and the lower clamp 23 In a semicircular annular shape covering the upper portion, an upper surface groove 24a surrounding the upper portion of the injection nozzle 2 is formed in a portion corresponding to the seating groove 23b, and a plurality of lower edge portions corresponding to the support groove 23c are formed. An upper clamp 24 provided with four supporting protrusions 24b, and connection holes 25a corresponding to the hinge hole 21a and the guide hole 22a are provided at both ends in the longitudinal direction to form the connection hole 25a. The injection nozzle fixing means 20 consisting of a connecting bar 25 installed to connect the hinge hole 21a and the guide hole 22a through the hinge pin 25b inserted into the
A structure comprising an upper cover (30) provided with a plurality of fastening protrusions (31) in a portion corresponding to the coupling groove (12) and detachably coupled to the open front surface of the installation box (10) Fire-fighting water spray nozzle clamping device of
The method of claim 1,
A support hole (23d) is further formed at the lower end of the lower clamp (23),
The lower portion of the installation box 10 has a box shape with an open front, and a storage box 41 having a plurality of insertion grooves 41a formed on the open front edge portion, and a plurality of portions corresponding to the insertion grooves 41a The insertion protrusion 42a of the dog is provided and a lower cover 42 detachably coupled to the front surface of the storage box 41 is further provided,
A support means 50 coupled to the support hole 23d to firmly fix the position of the lower clamp 23 is stored inside the storage box 41,
The support means 50 is
A connector 51 having an upper protrusion 51a inserted into the support hole 23d on the upper surface and a lower hole 51b on the lower surface;
A connecting bar 52 having a connecting protrusion 52a inserted into the lower hole 51b is provided on the upper surface and an insertion hole 52b is provided on the lower surface;
Clamping the fire extinguishing water spray nozzle of a building, characterized in that it includes a moving plate 53 having a joint protrusion 53a coupled to the insertion hole 52b on its upper surface and a plurality of wheels 53b on its lower surface. Device.
The method of claim 1,
On the inner surface of the installation box 10 , a rear hole 61 to which the coupling protrusion 22b of the lower guide body 22 is coupled is provided on the rear surface and is coupled to the coupling hole 23a of the lower clamp 23 . Fire extinguishing of a building, characterized in that the front protrusion 62 is provided on the front side and a connection bar 60 that is detachably coupled to the connection part of the lower guide body 22 and the lower clamp 23 is further provided. Water jet nozzle clamping device.
The method of claim 1,
A fixing ring 71 is provided on the front surfaces of the upper rail 14 and the lower rail 15,
A plurality of connecting rings 72 are further provided on the upper and lower portions of the lower clamp 23,
A plurality of support wires 73 connecting the fixing ring 71 and the connecting ring 72 are further provided on the inner surface of the installation box 10. Device.

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