Temperature control valve head

Abstract

The utility model relates to a temperature control valve head, and relates to the technical field of temperature control devices, the temperature control valve head comprises a main body and a knob rotationally arranged on the main body, an ejector rod, a thermosensitive element used for driving the ejector rod and a reset spring arranged on the periphery of the ejector rod in a sleeving mode are arranged in the main body, a limiting through hole is formed in the end, away from the knob, of the main body, and a fixing threaded sleeve is installed on the end, away from the knob, of the main body; an adjusting assembly is arranged on the side face of the rotary knob and comprises an adjusting top cover detachably arranged on the top of the rotary knob and a plurality of adjusting protrusions fixedly arranged on the periphery of the adjusting top cover. Due to the arrangement of the adjusting assembly, when the rotary knob needs to be rotationally adjusted, the adjusting top cover is fixed to the top of the rotary knob, at the moment, a user can hold the adjusting top cover and the adjusting protrusion to rotate, the rotary knob is driven to rotate synchronously, and the possibility that the palm slides relative to the rotary knob when the user directly holds the periphery of the rotary knob is reduced; the difficulty of rotating the knob is reduced, and the use performance of the temperature control valve head during adjustment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of temperature control devices, and in particular to a temperature control valve head. Background Art

[0002] The self-operated temperature control valve head is an energy-saving product that does not require external energy but relies on the temperature change of the controlled medium to automatically adjust. It integrates measurement, execution and control functions and is suitable for various heat exchange conditions with steam, hot water, hot oil and other media.

[0003] In the related technology, there is a temperature control valve head with publication number CN202946753U, which includes a knob, a thermistor, a spring, a support rod and a base, wherein the knob is threadedly connected to the base; the thermistor is arranged in the knob, supported by the support rod and the spring, and the bottom of the spring is a nut on the valve body; the support rod supports the valve core of the valve body; the up and down movement of the support rod drives the valve core to move to realize the flow control of the liquid in the valve body; the thermistor is a cylindrical body with a countersunk hole at the bottom.

[0004] Since the temperature control valve head usually needs to have good sealing performance to prevent medium leakage, in order to achieve this requirement, the fit between the knob and the valve body may need to be tighter, which may also lead to increased damping. The outer surface of the knob on the valve head is designed to be smooth to provide a smoother and smoother touch.

[0005] When the user adjusts the working state of the valve head by rotating the knob, although the outer surface of the knob is smooth, due to excessive damping, the user will feel greater resistance when turning the knob. The smooth surface may also cause relative sliding between the staff's palm and the outer surface of the knob, which increases the difficulty and inconvenience of operation. Long-term operation may cause hand fatigue of the user and even affect the accuracy and stability of the operation. There is room for improvement. Summary of the invention

[0006] The purpose of the present application is to provide a temperature control valve head to solve the problem in the above-mentioned related technology that the outer surface of the knob is smooth and the damping is too large when the knob is installed, which makes it difficult to rotate and adjust the knob.

[0007] The present application provides a temperature control valve head adopting the following technical solution:

[0008] A temperature control valve head comprises a main body and a knob rotatably arranged on the main body, wherein a push rod, a thermal sensitive element for driving the push rod and a return spring sleeved on the outer periphery of the push rod are arranged in the main body, a limiting through hole is provided at the end of the main body away from the knob and a fixing screw sleeve is installed, and a plurality of temperature sensing through holes are provided on the outer periphery of the knob; an adjustment component is provided on the side of the knob, and the adjustment component comprises an adjustment top cover detachably arranged on the top of the knob and a plurality of adjustment protrusions fixed on the outer periphery of the adjustment top cover.

[0009] By adopting the above technical solution, when the ambient temperature changes, the volume of the thermistor changes, thereby driving the push rod to move. When the temperature recovers, the thermistor resets, and the reset spring resets the push rod synchronously, thereby realizing the reciprocating movement of the push rod along its own axis. Due to the setting of the adjustment component, when the knob needs to be rotated and adjusted, the adjustment top cover is fixed to the top of the knob. At this time, the user can hold the adjustment top cover and the adjustment protrusion to rotate, driving the knob to rotate synchronously, reducing the possibility of relative sliding of the palm when directly holding the outer periphery of the knob, reducing the difficulty of rotating the knob, and improving the performance of the temperature control valve head during adjustment.

[0010] Optionally, the outer surface of the adjusting protrusion is a curved surface.

[0011] By adopting the above technical solution, since the outer surface of the adjusting protrusion is a smooth curved surface, the possibility of scratching the palm of the user when holding the adjusting protrusion is reduced, thereby enhancing the performance of the adjusting component during application.

[0012] Optionally, a plurality of positioning blocks are provided on the inner side wall of the adjusting top cover, and a positioning slot for inserting the positioning protrusions is provided on the outer periphery of the top of the knob.

[0013] By adopting the above technical solution, when the adjusting top cover is installed on the top of the knob, due to the matching setting of the positioning block and the corresponding positioning slot, the positioning block on the adjusting top cover is inserted into the corresponding positioning slot, which facilitates the disassembly and assembly of the adjusting top cover and the knob, and reduces the time required for disassembly and assembly of the top cover and the knob.

[0014] Optionally, a first magnetic component is disposed on the top of the knob, and a second magnetic component is disposed on the inner side surface of the adjustment top cover facing the top of the knob, which abuts against and attracts the first magnetic component.

[0015] By adopting the above technical solution, when the adjusting top cover is installed on the top of the knob, due to the coordinated setting of the first magnetic component and the second magnetic component, the second magnetic component on the adjusting top cover abuts against the first magnetic component on the knob, and the two attract each other, thereby improving the installation stability of the adjusting top cover and the knob when they are in the assembled state.

[0016] Optionally, an elastic clamping piece is provided on the side surface of the positioning plug block, and a positioning groove for inserting the elastic clamping piece is opened on the side wall of the positioning slot on the knob.

[0017] By adopting the above technical solution, when the adjustment top cover is installed on the top of the knob, the positioning block is inserted into the corresponding positioning slot, and due to the matching setting of the elastic clip and the positioning groove, the elastic clip on the positioning block is inserted into the positioning groove on the side wall of the positioning slot, thereby improving the installation stability of the positioning block in the positioning slot.

[0018] Optionally, a protective component is provided on the side of the adjustment top cover facing the knob, and the protective component includes a shielding screen arranged on the side of the adjustment top cover facing the knob, and a storage component for folding and storing the shielding screen. The shielding screen can be mounted on the periphery of the knob and the main body for protection.

[0019] By adopting the above technical solution, due to the setting of the protective component, when the temperature control valve head is used, the shielding screen can be stored and folded using the storage component; when transporting or idle, the shielding screen can be mounted on the periphery of the knob and the main body for protection, thereby reducing dust or other impurities from falling onto the outer surface of the temperature control valve head.

[0020] Optionally, the storage component includes a retaining ring arranged on the bottom edge of the shielding screen and a plurality of locking plates rotatably arranged on the outer periphery of the retaining ring, the locking plates are provided with card blocks, and the outer periphery of the adjustable top cover is provided with a card slot for inserting the card block.

[0021] By adopting the above technical solution, when the shielding screen needs to be folded and stored, due to the setting of the retaining ring and the locking plate, the user can drive the retaining ring to move in the direction close to the adjustment top cover, and then rotate the locking plate to insert the card block on the locking plate into the corresponding card slot, thereby realizing the storage and folding of the shielding screen.

[0022] Optionally, a storage groove for folding and storing the shielding screen is provided on the side of the adjusting top cover facing the knob.

[0023] By adopting the above technical solution, when the shielding screen is folded and stored, the folded storage screen is placed in the storage groove and further fixed by the storage piece, so as to better store the shielding screen and reduce its influence on the temperature control valve head in the working state.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Due to the setting of the adjustment component, when the knob needs to be rotated and adjusted, the adjustment top cover is fixed on the top of the knob. At this time, the user can hold the adjustment top cover and the adjustment protrusion to rotate, driving the knob to rotate synchronously, reducing the possibility of relative sliding of the palm when directly holding the outer periphery of the knob, reducing the difficulty of rotating the knob, and improving the performance of the temperature control valve head during adjustment.

[0026] 2. Due to the setting of the protective component, when the temperature control valve head is used, the shielding screen can be stored and folded using the storage piece; when transporting or idle, the shielding screen can be mounted on the periphery of the knob and the main body for protection, reducing dust or other impurities from falling onto the outer surface of the temperature control valve head. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 2 It is a schematic cross-sectional structure diagram of the embodiment of the present application showing the installation and cooperation between the main body and the knob;

[0030] Figure 3 It is a schematic diagram of an exploded structure showing the installation distribution of the regulating components in an embodiment of the present application;

[0031] Figure 4 It is a partial cross-sectional structural schematic diagram of the installation and matching of the adjustment component in the embodiment of the present application;

[0032] Figure 5 This is a schematic diagram of the overall structure of the installation and coordination of the protection components in the embodiment of the present application;

[0033] Figure 6 It is a schematic cross-sectional structure diagram of the installation and coordination of the protection component in the embodiment of the present application;

[0034] Figure 7 It is a schematic diagram of a partial cross-sectional structure of an embodiment of the present application when the shielding screen is in a stored state.

[0035] In the figure, 1, main body; 11, limiting through hole; 12, fixing screw sleeve; 2, knob; 21, positioning slot; 211, positioning groove; 22, first magnetic member; 23, temperature sensing through hole; 3, thermistor; 4, push rod; 5, reset spring; 6, adjustment component; 61, adjustment top cover; 611, positioning plug; 6111, placement slot; 612, second magnetic member; 613, storage slot; 614, card slot; 62, adjustment protrusion; 63, elastic card connector; 631, compression spring; 632, arc-shaped protrusion; 7, protection component; 71, shielding screen; 72, storage member; 721, retaining ring; 722, locking plate; 7221, card block. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0037] Example:

[0038] Reference Figure 1 and Figure 2A temperature control valve head comprises a main body 1 and a knob 2 rotatably arranged on the main body 1, wherein a push rod 4, a thermal element 3 for driving the push rod 4 and a return spring 5 sleeved on the outer periphery of the push rod 4 are arranged in the main body 1, a limited through hole 11 is provided at the end of the main body 1 away from the knob 2, and a fixing screw sleeve 12 is installed, and a plurality of temperature sensing through holes 23 are provided on the outer periphery of the knob 2; the fixing screw sleeve 12 is used to fix the temperature control valve head on the valve pipe (not shown in the figure), the thermal element 3 is a temperature sensing package, and its volume can change with the change of the ambient temperature, and the specific structure is not repeated here;

[0039] When the temperature control valve head is used, the thermosensitive element 3 monitors the ambient temperature in real time through the temperature sensing through hole 23. These thermosensitive elements 3 have physical properties that change with temperature. When the ambient temperature changes, the volume of the thermosensitive element 3 changes, thereby driving the push rod 4 to move. When the temperature recovers, the thermosensitive element 3 resets, and the reset spring 5 resets the push rod 4 synchronously, realizing the reciprocating movement of the push rod 4 along its own axis; thereby realizing the push rod 4 driving the movement of the valve core installed in the valve pipeline to control the opening and closing of the valve pipeline, which will not be described in detail here.

[0040] Reference Figure 2 and Figure 3 An adjustment component 6 is provided on the side of the knob 2, wherein the adjustment component 6 includes an adjustment top cover 61 detachably fixed to the top of the knob 2 and four adjustment protrusions 62 fixed on the outer periphery of the adjustment top cover 61, and the outer surface of the adjustment protrusion 62 is an arc surface; when the knob 2 needs to be rotated and adjusted, the adjustment top cover 61 is fixed to the top of the knob 2. At this time, the user can hold the adjustment top cover 61 and the adjustment protrusion 62 and rotate them, driving the knob 2 to rotate synchronously.

[0041] Reference Figure 3 and Figure 4 Two symmetrical positioning blocks 611 are formed on the inner side wall of the adjusting top cover 61, and an elastic clamping member 63 is provided on the side of the positioning block 611, wherein the elastic clamping member 63 includes a compression spring 631 and an arc-shaped protrusion 632, and a placement groove 6111 for the compression spring 631 and the arc-shaped protrusion 632 to be placed is opened on the positioning block 611, and the compression spring 631 squeezes the arc-shaped protrusion 632, and makes a part of the arc-shaped protrusion 632 protrude from the placement groove 6111, and the outer side surface of the protruding part is an arc surface, and the arc surface is a minor arc;

[0042] A positioning slot 21 for inserting the positioning protrusion is provided on the outer periphery of the top of the knob 2, and a positioning groove 211 for inserting the protruding part of the arc-shaped protrusion 632 is provided on the side wall of the positioning slot 21 on the knob 2; when the adjustment top cover 61 is installed on the knob 2, the positioning block 611 on the adjustment top cover 61 is inserted into the positioning slot 21, and the elastic clip 63 on the positioning block 611 is inserted into the corresponding positioning groove 211.

[0043] Reference Figure 4 A first magnetic member 22 is embedded in the top of the knob 2, and a second magnetic member 612 is embedded on the inner side surface of the adjustment top cover 61 facing the top of the knob 2, which abuts against and attracts the first magnetic member 22. Both the first magnetic member 22 and the second magnetic member 612 are ordinary magnet blocks.

[0044] Reference Figure 5 and Figure 6 A protective component 7 is provided on the side of the adjustment top cover 61 facing the knob 2. The protective component 7 includes a shielding screen 71 provided on the side of the adjustment top cover 61 facing the knob 2 and a storage member 72 for folding and storing the shielding screen 71. The shielding screen 71 is made of non-woven fabric. When transporting or idle, the shielding screen 71 can be sleeved on the outer periphery of the knob 2 and the main body 1 for protection; when the temperature control valve head is used, the shielding screen 71 can be stored and folded.

[0045] Reference Figure 6 and Figure 7 , a storage slot 613 for folding and storing the shielding screen 71 is provided on the side of the adjusting top cover 61 facing the knob 2. The storage member 72 includes a retaining ring 721 fixedly arranged on the bottom edge of the shielding screen 71 and two locking plates 722 rotatably arranged on the outer periphery of the retaining ring 721. A card block 7221 is formed on the locking plate 722. Both the locking plate 722 and the card block 7221 are made of plastic, and the card block 7221 can be bent and restored to a certain extent. At the same time, a card slot 614 for rotatably inserting the card block 7221 is provided on the outer periphery of the adjusting top cover 61;

[0046] When the shielding screen 71 needs to be folded and stored, the user drives the retaining ring 721 to move in the direction close to the adjustment top cover 61, so that the folded storage screen is placed in the storage groove 613, and then rotates the locking plate 722 to insert the card block 7221 on the locking plate 722 into the corresponding card groove 614.

[0047] The implementation principle of the embodiment of the present application is:

[0048] When the knob 2 needs to be rotated and adjusted, the adjusting top cover 61 is fixed to the top of the knob 2, so that the positioning block 611 on the adjusting top cover 61 is inserted into the positioning slot 21, and the elastic clip 63 on the positioning block 611 is inserted into the corresponding positioning groove 211. Finally, the user can hold the adjusting top cover 61 and the adjusting protrusion 62 to rotate, driving the knob 2 to rotate synchronously; due to the setting of the protective component 7, during transportation or idle, the shielding screen 71 can be mounted on the periphery of the knob 2 and the main body 1 for protection; when the temperature control valve head is used, the shielding screen 71 can be stored and folded.

[0049] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature control valve head, comprising a main body (1) and a knob (2) rotatably arranged on the main body (1), wherein a push rod (4), a thermal sensitive element (3) for driving the push rod (4) and a return spring (5) sleeved on the outer periphery of the push rod (4) are arranged in the main body (1), a limit through hole (11) is provided at an end of the main body (1) away from the knob (2), and a fixing screw sleeve (12) is installed, and a plurality of temperature sensing through holes (23) are provided on the outer periphery of the knob (2); It is characterized in that An adjustment component (6) is provided on the side of the knob (2), and the adjustment component (6) comprises an adjustment top cover (61) detachably arranged on the top of the knob (2) and a plurality of adjustment protrusions (62) fixedly arranged on the outer periphery of the adjustment top cover (61).

2. A temperature control valve head according to claim 1, characterized in that: The outer surface of the adjusting protrusion (62) is a curved surface.

3. A temperature control valve head according to claim 1, characterized in that: A plurality of positioning blocks (611) are arranged on the inner side wall of the adjusting top cover (61), and a positioning slot (21) for inserting the positioning blocks is provided on the outer periphery of the top of the knob (2).

4. A temperature control valve head according to claim 3, characterized in that: A first magnetic attraction member (22) is arranged on the top of the knob (2), and a second magnetic attraction member (612) is arranged on the inner side surface of the adjustment top cover (61) facing the top of the knob (2) and abuts against and attracts the first magnetic attraction member (22).

5. A temperature control valve head according to claim 3, characterized in that: An elastic clamping piece (63) is provided on the side of the positioning plug block (611), and a positioning groove (211) for inserting the elastic clamping piece (63) is provided on the side wall of the positioning slot (21) on the knob (2).

6. A temperature control valve head according to claim 1, characterized in that: A protective component (7) is provided on the side of the adjusting top cover (61) facing the knob (2), and the protective component (7) comprises a shielding screen (71) provided on the side of the adjusting top cover (61) facing the knob (2), and a storage member (72) for folding and storing the shielding screen (71); the shielding screen (71) can be sleeved on the outer periphery of the knob (2) and the main body (1) for protection.

7. A temperature control valve head according to claim 6, characterized in that: The storage member (72) comprises a retaining ring (721) arranged on the bottom side edge of the shielding screen (71) and a plurality of locking plates (722) rotatably arranged on the outer periphery of the retaining ring (721); a card block (7221) is provided on the locking plate (722); and a card slot (614) for inserting the card block (7221) is provided on the outer periphery of the adjustable top cover (61).

8. A temperature control valve head according to claim 7, characterized in that: A storage groove (613) for folding and storing the shielding screen (71) is provided on the side of the adjusting top cover (61) facing the knob (2).

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