JPS5847342Y2 - box type kotuku - Google Patents

Description

[Detailed Description of the Invention] The present invention provides, for example, in a central type hot water heating system, a radiator connected to the hot water circulation path in a branch manner so as to be detachable from the circulation path. This invention relates to a box type cock for connecting a radiator.

FIG. 7 shows a conventional example of this type of box type cock.

It is shown in FIG.

This will be outlined below. Cock closures 36a and 36b are interposed in the middle of the flow channel 33a and the outflow channel 33b, respectively, with their rotational axes being parallel to each other, and the flow channel 33
A cock closure 36a is installed at each end of the outflow path 33b and the outflow path 33b.
, 36b, the plug connection port 35a opens in the direction of the rotation axis.
, 35b are formed.

A plug holder 41 holds a pair of plugs 42a and 42b, and connects an intake pipe 40a and an outflow pipe 40b on the radiator side.

One operation knob 34a, 34b is attached to the rotary operation shaft end of each cock closer 36a, 36b.

This conventional box type cock has the following problems.

That is, box type faucets are typically buried near the bottom end of the wall.

Therefore, the operation knobs 34a and 34b are operated diagonally from above.

However, the receiving pipe 40a and the outflow pipe 40b extending from the plug holder 41 attached to the plug connection ports 35a and 35b
is located in the immediate vicinity of the operating knobs 34a, 34b, and is in such a state as to cover the operating knobs 34a, 34b.

1, the receiving pipe 40a and the outflow pipe 40b are connected to the operating knob 34.
a.

When operating the 34b, it gets in the way of the hand and also obstructs the visual sense, resulting in poor operability.

Furthermore, the operation knobs 34a, 34b and both cock closures 36a
, 36bK are provided separately, making operation cumbersome, and there is also a risk of forgetting to operate one.

In view of the above circumstances, an object of the present invention is to improve the operability of opening and closing the cock closer.

The box-type cock according to the present invention has a cock closing member interposed in the middle of each of the inflow passage and the outflow passage with their rotation axes being substantially parallel to each other, and a cock closing member is interposed between the two cock closures. The box-type cock is provided with a plug connection port that opens in the direction of the rotational axis of the cock closer at each end of the inlet passage and the outlet passage at a close position, and a gear is connected to both the cock closers. They are fixed to each other, and one end meshes with these two gears, and the other end slides on one rack for opening and closing the cock closer, which is located on the opposite side of the gear and grips the plug connection port. It is characterized in that it can be mounted freely, and furthermore, one knob for slidingly operating the rack is interlocked and connected to the other end of the rank.

The functions and effects of this configuration according to the present invention are as follows.

The other end (upper end) of the rack for opening and closing the cock closer is
This is the part that receives the operating force from the knob, and this part is located closer to the operator than the receiving pipe and outflow pipe extending from the plug holder.

Therefore, the operation knob that is interlocked with this part can be installed in a position where the receiving pipe and outflow pipe do not interfere with the operator's hand or become a visual hindrance, unlike in the conventional case. can.

Also, since a single rack is commonly engaged with the gear fixed to each of the two cock closers, both cock closers can be opened and closed at the same time by sliding this rack with one operating knob. I can do it.

First, there is no need to forget to close or open one of the cocks, unlike in the past.

As described above, according to the present invention, as a whole, the operability of opening and closing the cock closer can be significantly improved compared to the conventional example.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 schematically shows the entire central heating system using hot water.

The hot water heated by the boiler 1 is forced to be circulated by a pump 2 through a hot water circulation path 3 branched off via a header HD.

The hot water inflow path 3a... and the hot water outflow path 3b...
Each of the lead-out ends of each of the plurality of chambers is connected to a box-shaped cock 4 buried in the wall facing the interior of each chamber.

As shown in FIGS. 2 to 4, in each box type cock 4, the inflow passage 3a and the outflow passage 3b are spaced apart by an appropriate amount and extend parallel to each other from below to above,
The box-type cock 4 is bent in a horizontal position toward the indoor side at the vertically intermediate portion thereof, and its indoor side opening end is a plug connection port for removably fitting connection plugs 22a and 22b on the radiator 19 side. 5a, sb.

In the box type cock 4, the inlet passage 3as and the outlet passage 3b are located at the same height in the vertical direction, and the plug connection port 5a
, 5b, there is a cock closer 6 that is parallel to the horizontal portion including the connection ports 5a and 5b and rotates around the front and rear heel cores that are parallel to each other to open and close the inflow path 3as and the outflow path 3b.
A, 6b are interposed, and gears 7a, 7b are fixed concentrically to the rear portions of the flow paths of the closures 6a, 6b.

Arrival 9a + 9b meshing with these two gears 7a and 7b
The rack 8 has a rack 8 on both sides of its flat end and is held by the box cock 4 so as to be slidable in the vertical direction. are doing.

A cylindrical gear 11 that is rotatably supported around a front-rear axis is meshed with a shaft 10 formed on the upper end side of the rack 8 .

This gear 11 is further meshed with a rack body 12 which is held so as to be slidable left and right, and a connecting rod 1 integrally protrudes from the rack body 12 with a box-shaped cock 4 and an outer casing.
An operation knob 14 is fixed to the tip of 3.

Therefore, if you hold this knob 14 and slide it left and right,
Rack body 12, cylindrical gear 11, rack 8, gears 7a, 7
Both of the closing members 6a and 6b can be rotated open and closed simultaneously through the opening and closing means 6a and 6b.

The rack 8 is configured to be slidable within a range in which the closing members 5a and 5b are rotated by 90 degrees.

In the middle part in the longitudinal direction of the rack 8, there is a large diameter part 15A at the lower end.
A long hole 15 having a diameter is bored, and a rod 16 is fitted into this long hole 15.

This rod 16 has a large diameter portion 15A and a small diameter portion 1 of the elongated hole 15.
It has a large diameter part 16A and a small diameter part 16B that can be fitted into the box cock 4, respectively, arranged side by side in the horizontal axis direction, and is slidably held by the box type cock 4.

This rod 16 is biased forward by a spring 17, and normally its large diameter portion 16A is connected to the large diameter portion 1 of the elongated hole 15.
5A, and prevents the knob 14 and the rack 8 from sliding, and thus the closures 6a and 6b from rotating.

At this time, the closing members 5a and 5b are in a closed state.

This rod 16 is automatically pressed as the plugs 22a, 22b on the radiator 19 side are inserted into the connection ports 5a, 5b, as will be described later.

At this time, since the small diameter portion 16B is located within the front and rear ridges of the long hole 15, the small diameter portion 15B of the long hole 15 is in a state where it can be guided to the small diameter portion 16B of the rod 16, and the sliding of the rack 8 and the
The inlet passage 3a and the outlet passage 3b are made to communicate with each other by allowing the closures 6a and 6b to rotate.

A radiator 19 to be connected to such a box type cock 4
A water intake pipe 20a and a water outflow pipe 20b made of rubber are led out, and their respective ends are connected to one plug holder 21.

The plug holder 21 has a connecting port 5a which can communicate with the receiving pipe 20a and the outlet pipe 20b, spaced apart by the same distance as the connecting holes 5a and 5b.

Plugs 22a, 22 that can be inserted into and removed from 5b
b, and these plugs 22a, 22b are equipped with husband open/close valves 23a, 23b.

A hole 24 is formed in the left and right middle parts of the plug holder 21 in the front and rear direction, through which the shaft-shaped projection 18 that projects forward from the left and right middle parts of both the connection ports 5a and 5b can be inserted in the front part of the box-type cock 4. is penetrated by.

In the front and rear intermediate portions of this hole 24, vertically recessed grooves 25 are formed in an intersecting manner.

A pusher 26 having a longitudinal hole 26A in its lower part is fitted into the recessed groove 25, and the pusher 26 is urged upward by a spring 27.

18A is a recessed circumferential groove provided in the protrusion 18, and 26A' is a hole 26.
A protrusion formed at the lower end of A is configured to be able to engage with the gap 18A.

The front end surface 21A of the plug holder 21, the plug 22a,
When the rod 22b is inserted into the connection ports 5a, 5b, the protruding end surface of the rod 16 is pressed.

A through hole 26B is formed in the upper part of the pusher 26 in a direction perpendicular to the hole 26A, and an L rod 14A connected integrally with the knob 14 allows the knob 14 to be opened even slightly from its closed operating position. It is configured to fit into the through hole 26B when sliding toward the operating position.

In this fitted state, the pusher 26 is prevented from moving downward, and the plug holder 21 is prevented from separating from the box-type cock 4.

When the knob 14 is in the closed operating position, the plug 22a.

22b into the connection ports 5a and 5b, the tip end surface 21A of the plug holder 21 presses the rod 16 against the spring 17, and the hole 24 fits into the protrusion 18, causing the pusher 26
is automatically pushed down and then pushed up again by the spring 27, causing the protrusion 26A' to engage the circumferential groove 18A of the protrusion 18, thereby preventing the plug holder 21 from accidentally coming off.

At the same time, the tips of the on-off valves 23a and 23b are pressed against the inner wall surfaces of the inflow passage 3a and the outflow passage 3b, thereby opening the on-off valves 23a and 23b.

In this state, the small diameter portion 16B of the rod 16 is located within the front and rear ridges of the elongated hole 15, so that the closing members 6a, 6b can be opened by sliding the operating knob 14 to the right as described above.

This allows the radiator 19 to communicate with the circulation path 3.

At this time, since the L frame 14A fits into the through hole 26B of the pusher 26, it is impossible to move the pusher 26 downward, and therefore the plug holder 21 cannot be removed from the box cock 4. .

In order to make this removal possible, the knob 14 must be reliably slid back to its closed operation position 1, and the rod 14A must be inserted into the through hole 26B.
must be extracted from.

In this way, the related structure between the elongated hole 15 and the rod 16 and the related structure between the knob 14 and the pusher 26 constitute check and safety mechanisms 28 and 29, respectively.

FIG. 5 shows another embodiment.

In this case, the operating knob 14 is directly connected to the rack 8 via the connecting rod 13.

In this case, the gear 11 and rack body 12 described above are omitted.

When the knob 14 is moved downward, the closures 6a and 6b open, but at this time, the lower surface of the knob 14 is configured to stop directly above the pusher 26, so that the pusher 26 cannot be lowered.

When the knob 14 is slid upward to close the closures 6a and 6b,
Since there is a gap between the knob 14 and the pusher 26 in which a finger can be inserted, the pusher 26 can be moved downward to remove the plug holder 21.

FIG. 6 shows yet another embodiment.

This is provided with a rotary operation knob 14 on a gear 11 that meshes with the upper end 10 of the rack 8, and on the bottom surface of the gear 11, a rotary operation knob 14 is provided.
A projecting piece 14A' that stops directly above the pusher 26 when the knob 14 is moved down to the closed operation position to eliminate a gap for finger insertion is integrally provided.

[Brief explanation of the drawing]

1 to 6 show embodiments of a box-type cock according to the present invention. Figure 1 is a schematic diagram of the entire central heating system.
Fig. 2 is an enlarged plan view of a partially cutaway part, Fig. 3 is a schematic longitudinal sectional front view of the main part, Fig. 4 is a longitudinal sectional side view of the main part, and Fig. 5 is a longitudinal sectional side view of the main part.
FIG. 6 is a schematic longitudinal sectional front view of the main parts of the respective embodiments. FIGS. 7 and 8 are a schematic vertical side view and a schematic front view showing a conventional example. 3a... Inflow path, 3b... Outflow path, 5
a, 5b...Plug connection port, 6a, 6b...
... Cock closer, 7a, 7b ... Gear, 8.
...Rack, 14...Operation knob.

Claims (1)

[Scope of utility model registration request] A cock closure 6 is installed in the middle of each of the inflow path 3a and the outflow path 3b.
a and 6b are interposed so that their rotational axes are substantially parallel to each other, and the respective ends of the inflow passage 3a and the outflow passage 3b are located near the cock closures 6a and 6b. The box-type cock is formed with plug connecting ports 5a, 5b that open in the direction of the rotation axis of the cock closers 6a, 6b, in which both the cock closers 6a,
Gears 7a and 7b are fixed to 6b, respectively, and
One end meshes with these gears 7a, 7b, and the other end engages with the gears γa, 7b by sandwiching the plug connection ports 5a, 5b.
One rack 8 for opening and closing the cock closer located on the opposite side of the rack 8 is slidably mounted, and one knob 14 for slidingly operating the rack 8 is attached to the other side of the rack 8. A box-type cock characterized by an interlocking connection at the end.