CN211525640U - Temperature adjusting device of constant-temperature water mixing valve - Google Patents

Abstract

The utility model provides a water valve temperature regulation apparatus mixes with constant temperature belongs to valve technical field. The problem that defective products occur due to inaccurate temperature adjustment of the water mixing valve caused by part machining precision deviation or matching deviation between parts in the existing water mixing valve is solved. This product includes disk seat and threaded connection's valve rod on the disk seat, and the valve rod is worn to establish on the disk seat and valve rod upper end exposes outside it, is equipped with the round latch along its circumference on the outer peripheral face of valve rod upper end, still overlaps on the valve rod to be equipped with the holding ring, is equipped with the tooth's socket that meshes mutually with the latch on the holding ring lower extreme inside wall, and disk seat upper end outer peripheral face is equipped with the arc wall, is equipped with the arch of stretching out terminal surface under the holding ring on the. The utility model has the advantages of the qualification rate that makes the product promotes greatly.

Description

Temperature adjusting device of constant-temperature water mixing valve

Technical Field

The utility model belongs to the technical field of the valve, a mix the water valve, especially relate to a water valve temperature regulation apparatus mixes with constant temperature.

Background

The manual regulation and control of high and low temperature of the existing constant-temperature water mixing valve is realized by limiting the valve rod to regulate the high and low temperature through a built-in positioning structure, the internal structure is fixed, and the leaving temperature is also fixed. The highest temperature and the lowest temperature of the constant-temperature water mixing valve are detected, the deviation meeting the regulation can be delivered, and the defective products with overlarge deviation can be recycled. But the actual product reject rate is still high due to the limitation of many factors. Due to the influence of temperature deviation of the thermal bulb, part machining precision deviation and matching deviation among accessories, the highest temperature and the lowest temperature actually reflected by the water mixing valve are higher in temperature or lower in temperature. Usually, the maximum temperature deviation cannot exceed 4 ℃, and the maximum temperature deviation is beyond the maximum temperature deviation and belongs to unqualified products. The precision of the parts needs to be readjusted according to the deviation of the thermal bulb to match or replace the thermal bulb, and qualified products are retested and adjusted, so that the requirements of the qualification rate of the products on the precision of production equipment and the machining precision of the parts are improved, the requirements of the matching clearance of the parts are high, but the production efficiency is also influenced, and the product cost is also influenced. Therefore, the problem to be solved is that we are not reluctant to solve the problem.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a water valve temperature regulation apparatus mixes with constant temperature. The technical problem that defective products occur due to inaccurate temperature adjustment of the water mixing valve caused by part machining precision deviation or matching deviation among parts is solved.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a temperature regulation device of constant temperature water mixing valve, includes disk seat and threaded connection's valve rod on the disk seat, the valve rod is worn to establish on the disk seat and valve rod upper end exposes outside it, its characterized in that, be equipped with the round latch along its circumference on the outer peripheral face of valve rod upper end, still the cover is equipped with the holding ring on the valve rod, be equipped with the tooth's socket that meshes mutually with the latch on the holding ring lower extreme inside wall, disk seat upper end outer peripheral face is equipped with the arc wall, is equipped with the arch that stretches out terminal surface under the holding ring.

The outer peripheral surface of the exposed part at the upper end of the valve rod is provided with a circle of clamping teeth along the circumferential direction, the valve rod is further sleeved with a positioning ring, and the inner side wall of the lower end of the positioning ring is provided with a tooth groove meshed with the clamping teeth. The positioning ring is fixed on the valve rod in a manner that the latch is meshed with the tooth groove, and the valve rod is linked by rotating the positioning ring. The arc wall has been seted up along its circumference on the regulation disk seat outer peripheral face, and the holding ring lower extreme is equipped with the arch that downwardly extending stretches into in the arc wall, and the arch can rotate along with the valve rod, because valve rod circumferential direction can make the relative disk seat of valve rod displacement from top to bottom so the holding ring also can follow the valve rod and rotate and displacement from top to bottom. And the protrusion on the positioning ring can abut against the upper and lower displacement of the limiting valve rod along with the rotation of the two side walls of the arc-shaped groove, so that the range of the limiting valve rod for actively adjusting the temperature of the water mixing valve is reached. The mechanism for limiting the displacement range of the valve rod is arranged in the valve body of a common product, so that the disadvantage of the arrangement is that the temperature adjusting range generated by the processing precision error of the product cannot be adjusted again inaccurately. This product restricts the motion range of valve rod through the stop gear that holding ring and arc wall constitute. If the actual maximum temperature and the minimum temperature have larger errors, only the positioning ring needs to be detached for repositioning, and the qualification rate of products is greatly improved.

In foretell a thermostatic mixing valve temperature regulation apparatus, the groove width of arc wall is crescent gradually, and the biggest groove width of arc wall corresponds mixes water valve minimum temperature, and the minimum groove width of arc wall corresponds mixes water valve minimum temperature, and the arch can support along with the valve rod rotates respectively with the biggest groove width place face of arc wall and the minimum groove width place face and lean on, still be equipped with the sign that instructs the valve rod rotation direction to arouse temperature variation on the just right disk seat of arc wall.

Generally speaking, the qualified product rotating valve rod can abut against the maximum groove width surface of the arc-shaped groove when reaching the lowest temperature bump, and can abut against the maximum groove width surface of the arc-shaped groove when reaching the highest temperature bump, and the range of the manual temperature regulation of the water mixing valve is the span of the arc-shaped groove on the peripheral surface of the valve seat, and the maximum temperature bump and the maximum groove width surface are set values. If the temperature deviation is too large after the product leaves the factory and is detected, when the convex block is abutted against the surface where the maximum groove width or the minimum groove width of the arc-shaped groove is located, the actually displayed temperature does not reach or exceeds the ideally set temperature, so that the product achieves the qualified effect. It needs to be readjusted by the positioning ring to reach the desired set temperature.

If the product leaves the factory and the temperature deviation is too large after inspection, the positioning ring can be lifted upwards to enable the tooth socket to be disengaged from the latch on the valve rod, then the positioning ring is reset according to the temperature to enable the tooth socket to be engaged with the latch, and then the positioning ring is rotated to enable the positioning ring to be attached to the surface where the maximum slot width of the arc-shaped slot is located or the surface where the minimum slot width is located again. After adjusting like this can make the temperature deviation of product obtain correcting, the biggest groove width of arc wall corresponds mixes water valve minimum temperature, the minimum groove width of arc wall corresponds mixes water valve minimum temperature, the temperature range that makes mix the water valve falls into the biggest temperature and the minimum temperature that the arc wall was injectd again for the product reaches the regulation, sets up like this and makes the qualification rate of product promote greatly, has broken away from because the phenomenon that the deviation appears in the actual regulation temperature of mixing water valve that the problem of thermal bulb itself or machining precision scheduling problem caused. The product that the maximum and minimum temperature has the deviation can just be through the tooth's socket and the latch disengagement of holding ring and valve rod for simple point, thereby the position of adjustment lug in the arc wall reaches and supports to be minimum qualification temperature when supporting with the maximum wide corresponding limit of arc wall, supports to be the highest qualification temperature when supporting with the wide minimum limit of groove, sets up the qualification rate that makes the product like this and promotes greatly.

In the temperature adjusting device of the thermostatic water mixing valve, the surface of the maximum groove width of the arc-shaped groove is an arc-shaped buffering surface, and the arc-shaped surface matched with the buffering surface is arranged on the bulge.

When the valve rod is used daily, a hand wheel is connected to the valve rod, the hand wheel is rotated to drive the valve rod to rotate, and the valve rod rotates to drive the positioning ring to rotate. The movement of the bulge on the positioning ring in the range of the arc-shaped groove also has the function of limiting the hand wheel to manually adjust the maximum temperature and the minimum temperature of the water mixing valve, so that the use of people is facilitated, and the adjustment precision of people is improved. Protruding and arc wall support can lead to both to collide with the damage each other and cause shortcomings such as holding ring life reduction owing to rotating too violently or too urgently when leaning on under the rotation, so the biggest groove width department of arc is equipped with and is curved buffering face, have the arcwall face that is matched with the buffering face in the arch, along with the rotation of valve rod, the arcwall face can support with the buffering face formation and support and lean on, set up like this and make protruding and arc wall support the power when leaning on and obtain the dispersion buffering, make to support between the two and lean on becoming soft, greatly increased the life of holding ring.

In the temperature adjusting device for the constant-temperature water mixing valve, the valve rod at the upper end of the latch is further provided with the guide part along the circumferential direction of the valve rod, and the guide part is positioned on the inner side of the upper end of the positioning ring.

The effect of guide part lies in can making the more stable cover of holding ring establish on the valve rod, because the outer peripheral face of guide part and holding ring inside wall so of laminating more, can play the holding ring suit above that more stable, can not appear not hard up crooked condition, and temperature regulation is more accurate, improves the product percent of pass.

In the temperature adjusting device for the constant-temperature water mixing valve, the inner side wall of the upper end of the positioning ring is further provided with the flange, and the flange can form a stop with the latch to limit the positioning ring to move downwards to pass through the latch.

The flange has the effect that the positioning ring is supported in the axial direction of the positioning ring, the downward sliding of the positioning ring is limited by the fact that the lower end of the flange and the upper end of the clamping tooth are in a resisting mode, the clamping tooth is prevented from being meshed with the clamping groove in place due to excessive movement, and the positioning ring is more convenient to mount due to the arrangement.

In the temperature regulating device of the constant-temperature water mixing valve, the peripheral surface of the positioning ring is also provided with a plurality of notches, and the upper end surface and the lower end surface of the positioning ring are both provided with weight reduction grooves.

The notch has the function that the force application point can be released when the rotating positioning ring is adjusted, so that the rotating positioning ring is easier. And the holding ring can also link through notch and hand wheel for it is lighter to rotate. The weight reduction groove has the advantages that the positioning ring is lighter as a whole, the use is more flexible, and the cost is greatly reduced.

In the temperature adjusting device for the constant-temperature water mixing valve, the valve rod at the upper end of the positioning ring is further in threaded connection with a locking nut, and the lower end face of the locking nut and the upper end face of the positioning ring are abutted to limit the positioning ring to move along the axis direction of the positioning ring.

The locking nut has the effect that after the deviation temperature is adjusted, the positioning ring is fixed on the valve rod through the locking nut, and after the hand wheel is installed at the later stage, the rotation range of the hand wheel is controlled by the movement range of the convex block in the arc-shaped groove. Therefore, the positioning ring and the valve rod are required to be fixed by the locking nut to prevent accidental falling out, so that the temperature adjusting structure is failed, and unnecessary loss is caused.

In the temperature adjusting device for the constant-temperature water mixing valve, the upper end of the valve rod is further provided with a hexagonal mounting hole capable of mounting a hand wheel, the inner side of the lower end of the valve rod is further provided with a thermal bulb, and a spring enabling the thermal bulb to move downwards is further arranged between the thermal bulb and the valve rod.

Compared with the prior art, the utility model has the advantages of: the product that maximum and minimum temperature has the deviation can break away from the meshing through the tooth's socket and the latch of holding ring with the valve rod, thereby the position of adjustment lug in the arc wall reaches and supports for minimum qualification temperature when supporting with the maximum wide corresponding limit of groove of arc wall and support, supports for maximum qualification temperature when supporting with the wide minimum limit of groove, sets up the qualification rate that makes the product like this and promotes greatly.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a partial view of the present invention;

fig. 3 is a half sectional view of the present invention;

fig. 4 is a detail view of the positioning ring of the present invention.

In the figure, 1, valve seat; 11. an arc-shaped slot; 111. a buffer surface; 12. identifying; 2. a valve stem; 21. clamping teeth; 22. a guide portion; 23. mounting holes; 3. a positioning ring; 31. a tooth socket; 32. a protrusion; 321. an arc-shaped surface; 33. a flange; 34. a recess; 35. a weight reduction groove; 4. locking the nut; 5. a thermal bulb; 6. a spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, a thermostatic water mixing valve temperature regulating device comprises a valve seat 1 and a valve rod 2 arranged on the valve seat 1 in a penetrating manner, wherein the valve seat 1 is fixed with the valve rod 2 in a circumferential threaded connection manner, and the valve rod 2 can move up and down relative to the valve seat 1 by rotating the valve rod 2. The upper end of the valve rod 2 is also provided with a hexagonal mounting hole 23 for mounting a hand wheel, and the hand wheel can be used only by inserting into the mounting hole 23, so that the temperature can be adjusted conveniently. The inboard thermal bulb 5 that still is equipped with of 2 lower extremes of valve rod, thermal bulb 5 have along with temperature variation produces flexible effect, still are equipped with the spring 6 that makes thermal bulb 5 have the downward movement trend between thermal bulb 5 and the valve rod 2, are connected through spring 6 between thermal bulb 5 and the valve rod 2, rotate valve rod 2 and can realize manually carrying out the adjusting position to thermal bulb 5.

The outer peripheral surface of the exposed part of the upper end of the valve rod 2 is provided with a circle of latch 21 along the circumferential direction, and the valve rod 2 at the upper end of the latch 21 is also provided with a guide part 22 along the circumferential direction. The valve rod 2 is further sleeved with a positioning ring 3, a tooth groove 31 meshed with the clamping teeth 21 is formed in the inner side wall of the lower end of the positioning ring 3, and the positioning ring 3 penetrates through the guide portion 22 to enable the lower end clamping teeth 21 to be meshed with the tooth groove 31. The effect of guide portion 22 lies in making the more stable cover of holding ring 3 establish on valve rod 2, because the outer peripheral face of guide portion 22 and 3 inside walls of holding ring laminate so more, can play holding ring 3 suit and more stable above that, the not hard up askew condition can not appear. The positioning ring 3 is fixed on the valve rod 2 in a mode that the latch 21 is meshed with the tooth groove 31, and the valve rod 2 is linked by rotating the positioning ring 3. The outer peripheral surface of the valve seat 1 is provided with an arc-shaped groove 11 with the groove width gradually increasing clockwise along the circumferential direction, the maximum groove width of the arc-shaped groove 11 corresponds to the lowest temperature of the water mixing valve, and the minimum groove width of the arc-shaped groove 11 corresponds to the lowest temperature of the water mixing valve. The lower end of the positioning ring 3 is provided with a protrusion 32 which extends downwards into the arc-shaped groove 11, and the protrusion 32 can respectively abut against the surface where the maximum groove width of the arc-shaped groove 11 is located and the surface where the minimum groove width is located along with the rotation of the valve rod 2. Generally speaking, the qualified product rotates the valve rod 2 to reach the lowest temperature lug and can lean on with the biggest groove width place face of arc wall 11, rotates the highest temperature lug and can lean on with the biggest groove width place face of arc wall 11, and the range that the manual work of mixing water valve can carry out temperature regulation is the span on the disk seat 1 outer peripheral face of arc wall 11, and these are the value that sets for in advance. If the temperature deviation is too large after the product leaves the factory and is detected, when the convex block is abutted against the surface where the maximum groove width of the arc-shaped groove 11 is located or the surface where the minimum groove width is located, the actually displayed temperature does not reach or exceeds the ideally set temperature, so that the product achieves the qualified effect. It needs to be readjusted by the positioning ring 3 to reach the desired set temperature. The positioning ring 3 is lifted upwards, so that the tooth groove 31 is disengaged from the latch 21 on the valve rod 2, then the position of the convex block reentering the arc-shaped groove 11 is calculated according to the temperature, the convex block returns to the original position, so that the tooth groove 31 is engaged with the latch 21 again, and the positioning ring 3 is rotated to be attached to the surface where the maximum groove width of the arc-shaped groove 11 is located or the surface where the minimum groove width is located again. After adjusting like this can make the temperature deviation of product obtain correcting, the biggest groove width of arc wall 11 corresponds mixes water valve minimum temperature, the minimum groove width of arc wall 11 corresponds mixes water valve minimum temperature, the actual temperature control range that makes mix the water valve falls into maximum temperature and minimum temperature that arc wall 11 prescribed again, make the product reach the regulation, the qualification rate that makes the product promotes greatly like this, the phenomenon of mixing water valve actual regulation temperature that has broken away from because the problem of thermal bulb 5 itself or machining precision scheduling problem cause and appearing the deviation has been avoided. The product that the maximum and minimum temperature has the deviation can just be through holding ring 3 and the tooth's socket 31 and the latch 21 disengagement of valve rod 2, thereby the position of adjustment lug in arc wall 11 reaches and supports to be minimum qualification temperature when supporting with the biggest trough width of arc wall 11 corresponds the limit, supports to be the highest qualification temperature when supporting with the minimum limit of trough width, sets up the qualification rate that makes the product like this and promotes greatly. Still be equipped with the sign 12 that the temperature variation arouses in the direction of rotation of valve rod 2 on the just disk seat 1 of arc wall 11 and can make us carry out audio-visual judgement to the corresponding temperature variation of the direction of rotation of valve rod 2, prevent that some novices make mistakes when adjusting.

When the valve rod 2 is used daily, a hand wheel is connected to the valve rod 2, the hand wheel is rotated to drive the valve rod 2 to rotate, and the valve rod 2 rotates to drive the positioning ring 3 to rotate. The movement of the protrusion 32 on the positioning ring 3 in the range of the arc-shaped groove 11 also has the function of limiting the hand wheel to manually adjust the maximum temperature and the minimum temperature of the water mixing valve, so that the use of people is facilitated, and the adjustment precision of people is improved. Protruding 32 supports when leaning on with 11 cell walls of arc wall under the rotation can be because rotate too hard or lead to both to collide with the damage each other and cause shortcomings such as holding ring 3 life reduction, so the biggest groove width department of arc wall 11 is equipped with and is curved buffering face 111, have the arcwall face that matches with buffering face 111 on protruding 32, along with the rotation of valve rod 2, the arcwall face can support with buffering face 111 formation and support and lean on, the setting can make protruding 32 and 11 cell walls of arc wall support the power when leaning on and get the dispersion buffering like this, make to support between the two and lean on becoming soft, greatly increased holding ring 3's life. The inner side wall of the upper end of the positioning ring 3 is also provided with a flange 33, and the flange 33 can form a stop with the latch 21 to limit the downward movement of the positioning ring 3 through the latch 21. The flange 33 has the function of supporting the positioning ring 3 in the axial direction, the downward sliding of the positioning ring 3 is limited by the stop formed by the lower end of the flange 33 and the upper end of the latch 21, the excessive movement of the positioning ring is prevented, so that the latch 21 and the clamping groove are not meshed in place, and the positioning ring 3 is more convenient to mount. Six notches 34 are further formed in the outer peripheral surface of the positioning ring 3, and three weight reduction grooves 35 are formed in the upper end face and the lower end face of the positioning ring 3. The function of the notch 34 is to release the point of application of force when we adjust the rotating positioning ring 3, making we turn more easily. And the positioning ring 3 can be linked with a hand wheel through the notch 34, so that the rotation is easier. The weight reduction groove 35 has the effect that the positioning ring 3 is lighter as a whole, is more flexible to use and greatly reduces the cost.

As shown in fig. 1, a locking nut 4 is further screwed on the valve stem 2 at the upper end of the positioning ring 3, and the positioning ring 3 can be firmly fixed on the valve stem 2 by the locking nut 4. After the deviation temperature is adjusted, the positioning ring 3 is fixed on the valve rod 2 through the locking nut 4, and after the hand wheel is installed in the later period, the rotation range of the hand wheel is controlled by the movement range of the convex block in the arc-shaped groove 11. Therefore, the positioning ring 3 and the valve rod 2 are fixed by the locking nut 4 to prevent accidental falling out, so that the temperature adjusting structure is failed, and unnecessary loss is caused.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (8)

1. The utility model provides a water valve temperature regulation apparatus mixes with constant temperature, includes valve seat (1) and valve rod (2) of threaded connection on valve seat (1), valve rod (2) wear to establish on valve seat (1) and valve rod (2) upper end expose outside it, its characterized in that, be equipped with round latch (21) along its circumference on the outer peripheral face of valve rod (2) upper end, still the cover is equipped with holding ring (3) on valve rod (2), is equipped with tooth's socket (31) with latch (21) engaged with on the inside wall of holding ring (3) lower extreme, and valve seat (1) upper end outer peripheral face is equipped with arc wall (11), is equipped with on holding ring (3) and stretches out protruding (32) of holding ring (3) terminal surface down, and protruding (32) are located arc wall (.

2. The thermostatic mixing valve temperature regulating device according to claim 1, characterized in that the width of the arc-shaped groove (11) is gradually increased, the maximum width of the arc-shaped groove (11) corresponds to the lowest temperature of the mixing valve, the minimum width of the arc-shaped groove (11) corresponds to the lowest temperature of the mixing valve, the protrusion (32) can respectively abut against the surface where the maximum width of the arc-shaped groove (11) is located and the surface where the minimum width of the arc-shaped groove is located along with the rotation of the valve rod (2), and the valve seat (1) opposite to the arc-shaped groove (11) is further provided with a mark (12) for indicating the rotation direction of the valve rod (2) to cause temperature change.

3. The thermostatic mixing valve temperature regulating device according to claim 2, characterized in that the surface of the arc-shaped groove (11) where the maximum groove width is located is an arc-shaped buffering surface (111), and the protrusion (32) is provided with an arc-shaped surface (321) matched with the buffering surface (111).

4. The thermostatic mixing valve temperature regulating device according to claim 1, characterized in that the valve stem (2) at the upper end of the latch (21) is further provided with a guide part (22) along the circumference, and the guide part (22) is positioned at the inner side of the upper end of the positioning ring (3).

5. The thermostatic mixing valve temperature regulating device according to claim 4, characterized in that a flange (33) is further provided on the inner side wall of the upper end of the positioning ring (3), and the flange (33) can form a stop with the latch (21) to limit the downward movement of the positioning ring (3) through the latch (21).

6. The thermostatic mixing valve temperature regulating device according to claim 5, characterized in that the positioning ring (3) is further provided with a plurality of notches (34) on the outer peripheral surface, and the positioning ring (3) is provided with weight reduction grooves (35) on the upper end surface and the lower end surface.

7. The temperature adjusting device of the thermostatic water mixing valve according to any one of claims 1 to 6, characterized in that a locking nut (4) is further connected to the valve rod (2) at the upper end of the positioning ring (3) in a threaded manner, and the lower end face of the locking nut (4) and the upper end face of the positioning ring (3) are abutted to limit the displacement of the positioning ring (3) along the axial direction thereof.

8. The temperature adjusting device of the constant-temperature water mixing valve according to claim 7, characterized in that a hexagonal mounting hole (23) capable of mounting a hand wheel is further formed in the upper end of the valve rod (2), a thermal bulb (5) is further arranged on the inner side of the lower end of the valve rod (2), and a spring (6) enabling the thermal bulb (5) to have a downward movement tendency is further arranged between the thermal bulb (5) and the valve rod (2).

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