Temperature control head with temperature locking function

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a temperature control head with a temperature locking function, which comprises a base, a sliding seat arranged in the base in a sliding manner, a rotating shaft in threaded connection with the upper end of the base, a shell covering outside the rotating shaft, a lower end of the shell rotatably connected onto the base, and the rotating shaft vertically arranged in the shell in a sliding manner and circumferentially fixed with the shell. A temperature sensing bag is arranged on the rotating shaft and comprises a shell, a solid temperature sensing element and an ejector rod, the upper end of the ejector rod is connected with the solid temperature sensing element, the lower end of the ejector rod extends out of the shell, a compression spring is arranged between the lower end of the ejector rod and the sliding seat, and a plurality of vertically-arranged protruding strips are evenly distributed on the inner circumference of the shell. The plug pin is provided with a clamping groove matched with the protruding strip, and when the plug pin moves upwards and the protruding strip is clamped into the clamping groove, the shell is locked and fixed relative to the base. According to the utility model, the problem of adjustment failure caused by mistaken touch by others can be effectively avoided, and meanwhile, the problem of inaccurate temperature caused by rotation of the shell in the use process can also be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and particularly refers to a temperature control head with temperature locking. Background Art

[0002] The temperature control valve, abbreviated as the thermostatic valve, is a typical application of the flow regulating valve in the field of temperature control. The thermostatic valve automatically adjusts the opening degree of the valve core through a temperature bulb controller, which is usually called the valve head or temperature control head of the thermostatic valve in the industry. The core component of the temperature control head is the temperature sensing bulb. The temperature sensing bulb senses the change of the surrounding environment temperature and expands or contracts to drive the valve rod to move up and down, thereby adjusting the opening degree of the valve core to change the flow rate.

[0003] The Chinese utility model patent (publication number CN202158251U, application date June 27, 2011, publication date March 7, 2012) discloses a constant temperature controller, which includes a connecting seat arranged on the valve body of the thermostatic valve and a regulating valve cover arranged above the connecting seat. The regulating valve cover is connected to the connecting seat by threads. A temperature sensing bulb is arranged in the regulating valve cover. A valve rod is circumferentially fixed inside the connecting seat. A spring that enables the valve rod to have an upward movement trend is arranged between the valve rod and the connecting seat. A connecting sleeve is also circumferentially fixed outside the connecting seat. The upper end of the connecting sleeve is axially fixed to the lower end of the above-mentioned regulating valve cover. Under the action of the spring force, the temperature sensing bulb abuts against the inner side of the regulating valve cover. The upper end of the valve rod is inserted into the temperature sensing bulb, and the lower end of the valve rod is connected to the valve core inside the thermostatic valve. The connecting sleeve in this constant temperature controller is fixed, and the regulating valve cover is threadedly connected to and drives the connecting seat. When the regulating valve cover is rotated, the connecting seat can move up and down, thereby driving the valve rod to move up and down to control the opening or closing of the valve core of the thermostatic valve. Rotate the regulating valve cover to the set position, and the flow rate passing through the control valve is restricted within a certain range. When the temperature is higher than the set temperature, the temperature sensing bulb expands, causing the valve rod to move downward, driving the valve core to make the flow rate passing through the control valve smaller, thereby reducing the temperature. When the temperature is lower than the set temperature, the temperature sensing bulb contracts, driving the valve rod to move upward, thereby driving the valve core to make the flow rate passing through the control valve larger, increasing the temperature.

[0004] The disadvantages of the above constant temperature controller are as follows: The thermostatic valve is adjusted by rotating the regulating valve cover, but the adjusted regulating valve cover cannot be locked, there is a problem that others may accidentally touch it and cause the adjustment to fail, and there is also a problem that the regulating valve cover rotates by itself during use, resulting in inaccurate temperature. Content of the Utility Model

[0005] The purpose of the utility model is to provide a temperature control head with temperature locking, which can effectively avoid the problem that others accidentally touch it and cause the adjustment to fail, and at the same time can also effectively avoid the problem that the shell rotates by itself during use, resulting in inaccurate temperature.

[0006] The present utility model is realized as follows:

[0007] A temperature control head with temperature locking, including a base connected to the valve body of the temperature control valve at the lower end. A sliding seat is slidably arranged in the base. A rotating shaft is threadedly connected to the upper end of the base. An outer shell is sleeved outside the rotating shaft. The lower end of the outer shell is rotatably connected to the base. The rotating shaft is vertically slidably arranged in the outer shell and is circumferentially fixed to the outer shell. A temperature sensing bulb is arranged on the rotating shaft. The temperature sensing bulb includes a housing installed on the rotating shaft, a solid temperature sensing element arranged in the housing, and a push rod slidably arranged in the housing. The upper end of the push rod is connected to the solid temperature sensing element, and the lower end extends out of the housing. A compression spring is arranged between the lower end of the push rod and the sliding seat. A plurality of vertically arranged convex strips are evenly distributed on the inner circumference of the outer shell. A latch is vertically slidably arranged on the base. A card slot adapted to the convex strips is arranged on the latch. When the latch moves upward and the convex strips are caught in the card slot, the outer shell is locked and fixed relative to the base.

[0008] In the above-mentioned temperature control head with temperature locking, the sliding seat is connected to the valve core of the temperature control valve.

[0009] In the above-mentioned temperature control head with temperature locking, the solid temperature sensing element is paraffin.

[0010] In the above-mentioned temperature control head with temperature locking, a plurality of vertically arranged limiting grooves are evenly distributed on the outer circumference of the upper end of the rotating shaft. At least one convex strip is provided with a limiting strip. The limiting strip can slide vertically relative to the limiting groove. The rotating shaft is circumferentially fixed to the outer shell by the limiting strip being caught in the limiting groove.

[0011] In the above-mentioned temperature control head with temperature locking, there are more than two limiting strips evenly distributed along the circumference.

[0012] In the above-mentioned temperature control head with temperature locking, the number of limiting grooves is more than the number of convex strips, and the number of convex strips is more than the number of limiting strips.

[0013] In the above-mentioned temperature control head with temperature locking, the rotating shaft is a hollow cylinder with an open lower end. An installation boss is arranged at the upper end of the rotating shaft. The limiting grooves are arranged on the outer circumference of the installation boss. External threads are arranged on the outer circumference of the lower end of the rotating shaft. The housing includes an upper cylinder, a lower cylinder, and an assembly boss arranged between the upper cylinder and the lower cylinder. The solid temperature sensing element is arranged in the upper cylinder. The push rod is slidably arranged in the lower cylinder. A through hole for the upper cylinder to extend upward is arranged in the rotating shaft. A convex block for downward limiting of the assembly boss is arranged on the inner side wall of the rotating shaft.

[0014] In the above-mentioned temperature control head with temperature locking, the sliding seat is a hollow cylinder with an open upper end. A slider is vertically slidably arranged in the sliding seat. The lower end of the push rod abuts against the slider. The compression spring is arranged between the slider and the inner end face of the sliding seat.

[0015] In the above-mentioned temperature control head with temperature locking, guide bars are vertically arranged along the outer periphery of the slider, and guide grooves adapted to the guide bars are provided inside the slide seat.

[0016] In the above-mentioned temperature control head with temperature locking, a plurality of guide bars are evenly distributed along the circumference, and a first convex block protruding outward is provided at the lower end of the guide bar. A second convex block for upper limiting of the first convex block is provided on the slide seat.

[0017] In the above-mentioned temperature control head with temperature locking, an upper guide post is provided in the middle of the slider, and a lower guide post is provided inside the slide seat. The upper end of the compression spring is sleeved on the upper guide post, and the lower end is sleeved on the lower guide post.

[0018] In the above-mentioned temperature control head with temperature locking, a limiting boss for lower limiting by abutting against the base is provided on the outer periphery of the slide seat.

[0019] In the above-mentioned temperature control head with temperature locking, a guide sleeve, a threaded sleeve and a connecting sleeve are sequentially provided on the upper end of the base from inside to outside, and the three are coaxially arranged. The slide seat is slidably arranged in the guide sleeve. The lower end of the rotating shaft is threadedly connected in the threaded sleeve, and an internal thread is provided in the threaded sleeve. The lower end of the outer shell is rotatably connected in the connecting sleeve.

[0020] In the above-mentioned temperature control head with temperature locking, the limiting boss abuts against and is limited by the guide sleeve, and the guide sleeve performs lower limiting on the limiting boss.

[0021] In the above-mentioned temperature control head with temperature locking, an annular groove is provided on the outer side wall of the lower end of the outer shell, and a limiting block is provided on the inner side wall of the connecting sleeve. The connecting sleeve axially limits the outer shell through the annular groove and the limiting block.

[0022] In the above-mentioned temperature control head with temperature locking, two or more limiting blocks are evenly distributed along the circumference. A notch is provided on the side wall of the connecting sleeve, and the notch is located in the middle and lower part of the annular groove. A third convex block for lower limiting of the limiting block is provided in the notch. The number and position of the notches correspond to those of the limiting blocks. The lower end of the third convex block is connected to the connecting sleeve, and the upper end surface of the third convex block is flush with the lower end surface of the annular groove.

[0023] In the above-mentioned temperature control head with temperature locking, guide plates are respectively provided on both sides of the lower end of the bolt. A sliding groove for the guide plates to slide vertically is provided on the base. A pushing block protruding from the base is provided at the lower end of the bolt.

[0024] In the above-mentioned temperature control head with temperature locking, a flower cap is provided at the lower end of the base, and the base is fixedly connected to the temperature control valve body through the flower cap. The outer side surface of the flower cap includes a flat surface and a cylindrical side surface, and a plurality of anti-slip grooves are concavely formed in the cylindrical side surface.

[0025] In the above-mentioned temperature control head with temperature locking, two planes are arranged opposite to each other, and two sides of the cylinder are arranged opposite to each other.

[0026] In the above-mentioned temperature control head with temperature locking, the materials of the sliding seat, rotating shaft, outer shell and slider are plastics, and the plastics are POM (polyoxymethylene), PP (polypropylene) or nylon. When the plastic material encounters external force, it can undergo a certain elastic deformation.

[0027] The outstanding advantages of the present utility model compared with the prior art are:

[0028] In the present utility model, a bolt is slidably arranged vertically on the base, and a clamping groove adapted to the convex strip is arranged on the bolt. When the bolt moves upward and the convex strip is clamped into the clamping groove, the outer shell is locked, that is, the outer shell is fixed relative to the base, effectively avoiding the problem of adjustment failure caused by accidental touch by others, and at the same time effectively avoiding the problem of inaccurate temperature caused by the rotation of the outer shell during use; at the same time, the temperature sensing element of the present utility model adopts a solid temperature sensing element, making the product structure compact and the response fast. Description of the Drawings

[0029] Figure 1 is a perspective view of the present utility model;

[0030] Figure 2 is a sectional view of the present utility model;

[0031] Figure 3 is an exploded view of the present utility model;

[0032] Figure 4 is a perspective view of the outer shell of the present utility model;

[0033] Figure 5 is a perspective view of the slider of the present utility model;

[0034] Figure 6 is a perspective view of the sliding seat of the present utility model.

[0035] Reference numerals: 1, base; 2, sliding seat; 3, rotating shaft; 4, outer shell; 5, temperature sensing bulb; 5a, housing; 5a1, upper cylinder; 5a2, lower cylinder; 5a3, assembly boss; 5b, ejector rod; 6, compression spring; 7, rib; 8, bolt; 9, clamping groove; 10, limiting groove; 11, limiting strip; 12, mounting boss; 13, external thread; 14, convex block; 15, slider; 16, guiding strip; 17, guiding groove; 18, first clamping block; 19, second clamping block; 20, limiting boss; 21, guiding sleeve; 22, threaded sleeve; 23, connecting sleeve; 24, internal thread; 25, guiding plate; 26, sliding groove; 27, pushing block; 28, flower cap; 29, plane; 30, cylindrical side surface; 31, anti-slip groove; 32, upper guiding post; 33, lower guiding post; 34, annular groove; 35, limiting block. Detailed implementation mode

[0036] The following further describes the present utility model with specific embodiments. Refer to Figure 1 —6:

[0037] A temperature control head with temperature locking includes a base 1 connected to the temperature control valve body at the lower end. A sliding seat 2 is slidably arranged in the base 1. The upper end of the base 1 is threadedly connected with a rotating shaft 3. An outer shell 4 is sleeved outside the rotating shaft 3. The lower end of the outer shell 4 is rotatably connected to the base 1. The rotating shaft 3 is slidably arranged vertically in the outer shell 4 and is circumferentially fixed to the outer shell 4. A temperature sensing bulb 5 is arranged on the rotating shaft 3. The temperature sensing bulb 5 includes a housing 5a installed on the rotating shaft 3, a solid temperature sensing element arranged in the housing 5a, and an ejector rod 5b slidably arranged in the housing 5a. The upper end of the ejector rod 5b is connected to the solid temperature sensing element, and the lower end extends out of the housing 5a. A compression spring 6 is arranged between the lower end of the ejector rod 5b and the sliding seat 2. A plurality of vertically arranged ribs 7 are evenly distributed on the inner circumference of the outer shell 4. A bolt 8 is slidably arranged vertically on the base 1. A clamping groove 9 adapted to the ribs 7 is arranged on the bolt 8. When the bolt 8 moves upward and the ribs 7 are engaged in the clamping groove 9, the outer shell 4 is locked and fixed relative to the base 1.

[0038] Furthermore, the sliding seat 2 is connected to the temperature control valve spool.

[0039] The working principle of the present utility model: As Figures 1-6 shown, the base 1 is installed on the temperature control valve body. The outer shell 4 is rotated to drive the rotating shaft 3 to rotate, realizing the up and down movement of the rotating shaft 3 relative to the base 1, thereby driving the temperature sensing bulb 5 to move up and down, and further driving the sliding seat 2 to move up and down to adjust the opening degree of the temperature control valve spool. When the outer shell 4 rotates to the position, the bolt 8 is moved upward, and the ribs 7 are engaged in the clamping groove 9 to lock the outer shell 4. When adjustment is required, the bolt 8 is moved downward, the clamping groove 9 is separated from the ribs 7, and the outer shell 4 can rotate relative to the base 1.

[0040] In the utility model, a bolt 8 is slidably arranged vertically on a base 1, and a clamping groove 9 adapted to a rib 7 is arranged on the bolt 8. When the bolt 8 moves upward and the rib 7 is clamped into the clamping groove 9, the outer shell 4 is locked, that is, the outer shell 4 is fixed relative to the base 1, effectively avoiding the problem of adjustment failure caused by accidental touch by others, and at the same time effectively avoiding the problem of inaccurate temperature caused by the rotation of the outer shell 4 during use. At the same time, the temperature sensing element of the utility model adopts a solid temperature sensing element, making the product structure compact and the response fast.

[0041] When the ambient temperature rises, the solid temperature sensing element expands, the ejector rod 5b moves downward, compresses the compression spring 6, and drives the sliding seat 2 to move downward through the compression spring 6.

[0042] When the ambient temperature drops, the solid temperature sensing element contracts, the ejector rod 5b moves upward under the elastic force of the compression spring 6, and the sliding seat 2 moves upward under the restoring force of the temperature control valve spool.

[0043] Furthermore, the upper end of the temperature control valve spool abuts against the sliding seat 2, and a restoring spring for moving the spool upward is arranged in the temperature control valve, and the restoring spring generates a restoring force.

[0044] Furthermore, the solid temperature sensing element is paraffin.

[0045] The connection structure of the rotating shaft 3 and the outer shell 4: As Figures 2-4 shown, a plurality of vertically arranged limiting grooves 10 are circumferentially distributed on the outer circumference of the upper end of the rotating shaft 3, and at least one rib 7 is provided with a limiting strip 11. The limiting strip 11 slides vertically relative to the limiting groove 10, and the rotating shaft 3 is circumferentially fixed to the outer shell 4 by the limiting strip 11 being clamped into the limiting groove 10, but the limiting strip 11 can slide relative to the limiting groove 10, that is, the rotating shaft 3 can slide relative to the outer shell 4. The structure is simple and convenient for installation and processing.

[0046] Furthermore, two or more limiting strips 11 are circumferentially distributed.

[0047] Preferably, the number of the limiting grooves 10 is more than the number of the ribs 7, and the number of the ribs 7 is more than the number of the limiting strips 11.

[0048] The installation structure of the temperature sensing package 5: As Figure 2 、 3As shown, the rotating shaft 3 is a hollow cylinder with an open lower end. An installation boss 12 is provided at the upper end of the rotating shaft 3. The limiting groove 10 is arranged on the outer periphery of the installation boss 12. An external thread 13 is provided on the outer periphery of the lower end of the rotating shaft 3. The housing 5a includes an upper cylinder 5a1, a lower cylinder 5a2, and an assembly boss 5a3 arranged between the upper cylinder 5a1 and the lower cylinder 5a2. The solid temperature sensing element is arranged in the upper cylinder 5a1. The ejector rod 5b is slidably arranged in the lower cylinder 5a2. A through hole for the upper cylinder 5a1 to extend upward is provided in the rotating shaft 3. A convex block 14 for lower limiting the assembly boss 5a3 is provided on the inner side wall of the rotating shaft 3.

[0049] Installation structure of the compression spring 6: As Figure 2 , 3 , 5, and 6 show that the sliding seat 2 is a hollow cylinder with an open upper end. A slider 15 is slidably arranged vertically in the sliding seat 2. The lower end of the ejector rod 5b abuts against the slider 15. The compression spring 6 is arranged between the slider 15 and the inner end face of the sliding seat 2, which is convenient for the installation of the compression spring 6.

[0050] In order to guide the vertical movement of the slider 15, as Figure 3 , 5 , and 6 show that guide strips 16 are arranged vertically on the outer periphery of the slider 15. Guide grooves 17 adapted to the guide strips 16 are provided on the inner side of the sliding seat 2.

[0051] In order to limit the slider 15 upward to prevent the slider 15 from completely leaving the sliding seat 2, as Figure 3 , 5 , and 6 show that a plurality of guide strips 16 are evenly distributed along the circumference, and an outwardly convex first clamping block 18 is provided at the lower end of the guide strip 16. A second clamping block 19 for upper limiting the first clamping block 18 is provided on the sliding seat 2.

[0052] In order to guide the compression spring 6, an upper guide post 32 is provided in the middle of the slider 15, and a lower guide post 33 is provided in the sliding seat 2. The upper end of the compression spring 6 is sleeved on the upper guide post 32, and the lower end is sleeved on the lower guide post 33.

[0053] In order to limit the sliding seat 2 downward to set the lowest temperature, a limiting boss 20 for lower limiting contact with the base 1 is provided on the outer periphery of the sliding seat 2.

[0054] Structure of the base 1: As Figures 1-3 shown, a guide sleeve 21, a threaded sleeve 22, and a connecting sleeve 23 are sequentially provided at the upper end of the base 1 from inside to outside, and the three are coaxially arranged. The sliding seat 2 is slidably arranged in the guide sleeve 21. The lower end of the rotating shaft 3 is threadedly connected in the threaded sleeve 22. An internal thread 24 is provided in the threaded sleeve 22. The lower end of the outer shell 4 is rotatably connected in the connecting sleeve 23.

[0055] Furthermore, the limiting boss 20 abuts against and is limited by the guide sleeve 21, and the guide sleeve 21 limits the lower position of the limiting boss 20.

[0056] Furthermore, the outer shell 4 is threadedly connected to the base 1 through the external thread 13 and the internal thread 24.

[0057] Mounting structure of the outer shell 4: An annular groove 34 is provided on the outer side wall of the lower end of the outer shell 4, a limiting block 35 is provided on the inner side wall of the connecting sleeve 23, and the connecting sleeve 23 axially limits the outer shell 4 through the annular groove 34 and the limiting block 35.

[0058] To facilitate the installation of the outer shell 4, there are two or more limiting blocks 35 evenly distributed along the circumference. A notch is provided on the side wall of the connecting sleeve 23. The notch is located in the middle and lower part of the annular groove 34. A third clamping block for limiting the lower position of the limiting block 35 is provided in the notch. The number and position of the notches correspond to the limiting blocks 35. The lower end of the third clamping block is connected to the connecting sleeve 23, and the upper end surface of the third clamping block is flush with the lower end surface of the annular groove 34, not shown in the figure.

[0059] To guide the vertical movement of the bolt 8 and prevent the bolt 8 from detaching from the base 1, as Figures 1-3 shown, guide plates 25 are respectively provided on both sides of the lower end of the bolt 8. The base 1 is provided with sliding grooves 26 for the guide plates 25 to slide vertically. A pushing block 27 protruding from the base 1 is provided at the lower end of the bolt 8.

[0060] Mounting structure of the base 1 and the temperature control valve body: A flower cap 28 is provided at the lower end of the base 1, and the base 1 is fixedly connected to the temperature control valve body through the flower cap 28. The outer side surface of the flower cap 28 includes a flat surface 29 and a cylindrical side surface 30. A plurality of anti-slip grooves 31 are concavely formed in the cylindrical side surface 30, which is convenient for the installation of the present invention on the temperature control valve body.

[0061] Furthermore, two flat surfaces 29 are oppositely arranged, and two cylindrical side surfaces 30 are oppositely arranged.

[0062] Furthermore, the materials of the sliding seat 2, the rotating shaft 3, the outer shell 4 and the slider 15 are plastics, and the plastics are POM (polyoxymethylene), PP (polypropylene) or nylon. When the plastic material encounters an external force, it can undergo a certain elastic deformation. In this embodiment, the materials of the sliding seat 2, the rotating shaft 3 and the slider 15 are POM (polyoxymethylene), and the material of the outer shell 4 is nylon 6.

[0063] During the assembly of the temperature sensing bulb 5, the temperature sensing bulb 5 enters the rotating shaft 3 from the lower end opening of the rotating shaft 3, and then the assembly boss 5a3 is forced into the space between the convex block 14 and the inner end surface of the rotating shaft 3.

[0064] When the slider 15 is assembled, the slider 15 enters the slide base 2 from the upper opening of the slide base 2, and the first clamping block 18 is forced into the lower part of the second clamping block 19.

[0065] When the outer shell 4 is assembled, the lower end of the outer shell 4 is inserted into the connecting sleeve 23, and the outer shell 4 is forced downward to squeeze the limiting block 35 into the annular groove 34.

[0066] The above embodiments are only one of the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the shape, structure, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A temperature control head with temperature locking, characterized in that: The invention comprises a base (1) whose lower end is connected to a temperature control valve body, a sliding seat (2) is slidably provided inside the base (1), a rotating shaft (3) is threadedly connected to the upper end of the base (1), an outer shell (4) is provided outside the rotating shaft (3), the lower end of the outer shell (4) is rotatably connected to the base (1), the rotating shaft (3) is slidably provided inside the outer shell (4) along the vertical direction, and is circumferentially fixed to the outer shell (4), a temperature sensing package (5) is provided on the rotating shaft (3), and the temperature sensing package (5) comprises a shell (5a) installed on the rotating shaft (3), a solid temperature sensing element arranged in the shell (5a), and a and a top rod (5b) slidably arranged in the shell (5a), the top end of the top rod (5b) being connected to a solid temperature sensing element and the bottom end extending out of the shell (5a), a compression spring (6) being arranged between the bottom end of the top rod (5b) and the slide seat (2), a plurality of convex strips (7) arranged vertically evenly distributed on the inner circumference of the shell (4), a latch (8) being vertically slidably arranged on the base (1), a slot (9) being arranged on the latch (8) and matching with the convex strip (7), and when the latch (8) moves upward and the convex strip (7) is snapped into the slot (9), the shell (4) is locked and fixed relative to the base (1).

2. A temperature control head with temperature locking according to claim 1, characterized in that: A plurality of vertically arranged limiting grooves (10) are evenly distributed on the circumference of the upper end of the rotating shaft (3); a limiting strip (11) is provided on at least one of the convex strips (7); the limiting strip (11) can slide vertically relative to the limiting strip (10); and the rotating shaft (3) is fixed to the outer shell (4) in the circumferential direction by being inserted into the limiting slot (10) through the limiting strip (11).

3. A temperature control head with temperature locking according to claim 2, characterized in that: The rotating shaft (3) is a hollow cylinder with an opening at the lower end. A mounting boss (12) is provided at the upper end of the rotating shaft (3). The limiting groove (10) is arranged on the outer circumference of the mounting boss (12). An external thread (13) is provided on the outer circumference of the lower end of the rotating shaft (3). The housing (5a) comprises an upper cylinder (5a1), a lower cylinder (5a2), and an assembly boss (5a3) arranged between the upper cylinder (5a1) and the lower cylinder (5a2). The solid temperature sensing element is arranged in the upper cylinder (5a1). The push rod (5b) is slidably arranged in the lower cylinder (5a2). A through hole is provided in the rotating shaft (3) for the upper cylinder (5a1) to extend upward. A protrusion (14) for limiting the lower position of the assembly boss (5a3) is provided on the inner side wall of the rotating shaft (3).

4. A temperature control head with temperature locking according to claim 1, characterized in that: The slide seat (2) is a hollow cylinder with an opening at the upper end. A slider (15) is vertically slidably disposed inside the slide seat (2). The lower end of the push rod (5b) abuts against the slider (15). The compression spring (6) is disposed between the slider (15) and the inner end surface of the slide seat (2).

5. A temperature control head with temperature locking according to claim 4, characterized in that: A guide strip (16) is vertically arranged on the outer periphery of the sliding block (15), and a guide groove (17) matching the guide strip (16) is arranged on the inner side of the sliding seat (2).

6. A temperature control head with temperature locking according to claim 5, characterized in that: A plurality of guide bars (16) are evenly distributed along the circumference, and a protruding clamping block (18) is provided at the lower end of the guide bar (16). A clamping block (19) for upper limiting the position of the clamping block (18) is provided on the slide seat (2).

7. A temperature control head with temperature locking according to claim 4, characterized in that: The outer periphery of the sliding seat (2) is provided with a limit boss (20) which abuts against the base (1) to reach a lower limit.

8. The temperature control head with temperature locking according to claim 1, characterized in that: The upper end of the base (1) is provided with a guide sleeve (21), a threaded sleeve (22) and a connecting sleeve (23) in sequence from the inside to the outside, and the three are coaxially arranged. The slide seat (2) is slidably arranged in the guide sleeve (21), the lower end of the rotating shaft (3) is threadedly connected in the threaded sleeve (22), the threaded sleeve (22) is provided with an internal thread (24), and the lower end of the outer shell (4) is rotatably connected in the connecting sleeve (23).

9. A temperature control head with temperature locking according to claim 1, characterized in that: Guide plates (25) are respectively provided on both sides of the lower end of the latch (8), a sliding groove (26) for the guide plate (25) to slide vertically is provided on the base (1), and a pushing block (27) protruding from the base (1) is provided at the lower end of the latch (8).

10. The temperature control head with temperature locking according to claim 1, characterized in that: The base (1) is provided with a flower cap (28) at the lower end and is fixedly connected to the temperature control valve body via the flower cap (28); the outer side surface of the flower cap (28) comprises a plane (29) and a cylindrical side surface (30); the cylindrical side surface (30) is concave to form a plurality of anti-slip grooves (31).

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