Adapter for temperature-controlled head

Abstract

This utility model belongs to the field of valve technology, specifically referring to an adapter for a temperature control head. It includes an external threaded section screwed onto the cap of the temperature control head and an internal threaded section screwed onto the valve body of a temperature control valve. The internal threaded section is located below the external threaded section, and the nominal diameter of the external thread of the external threaded section is different from the nominal diameter of the internal thread of the internal threaded section. An installation section is provided above the external threaded section, and a sliding rod that slides vertically along the installation section abuts against the valve stem of the temperature control head. This utility model's temperature control head can be adapted to two different valve bodies, eliminating concerns about the size of the purchased temperature control head and the valve body, and is easy to install.

Description

Technical fields:

[0001] This utility model belongs to the field of valve technology, and specifically refers to an adapter for a temperature control head. Background technology:

[0002] Chinese utility model patent (publication number CN213271292U, application date 2020.09.28, publication date 2021.05.25) discloses a temperature control head, including a connecting seat. An adjusting valve cover is threadedly connected to the upper end of the connecting seat. A temperature sensor is fixed inside the adjusting valve cover. A valve stem is inserted into the connecting seat. A spring is provided between the valve stem and the temperature sensor. A protruding locking part is located on the outer side of the connecting seat, below the adjusting valve cover. The locking part has a through-hole. A locking groove corresponding to the locking hole is formed on the inner side of the lower end of the adjusting valve cover. The lower end of the locking groove is open. Several locking grooves are arranged circumferentially. The temperature control head also includes a locking rod. The locking rod can be inserted into the locking hole from the lower end of the locking part, and the upper end of the locking rod can be engaged and fixed into any one of the locking grooves. (See attached specification.) Figure 1 , 2 It can be seen that the lower end of the connector is equipped with a decorative cap for connecting the valve body of the temperature control valve.

[0003] There are currently two types of thermostatic valves on the market: one type has an M30x1.5 internal thread in the thermostatic head cap and an M30x1.5 external thread on the valve body; the other type has an M28x1.5 internal thread in the thermostatic head cap and an M28x1.5 external thread on the valve body. When users need to replace the thermostatic head, they must purchase a thermostatic valve from the market that corresponds to their own valve body. If the wrong valve is purchased, it will be impossible to install, which is very inconvenient. Utility Model Content:

[0004] The purpose of this invention is to provide a temperature control head adapter that can be adapted to two different valve bodies, eliminating concerns about the size of the purchased temperature control head and the valve body, and making installation convenient.

[0005] This utility model is implemented as follows:

[0006] An adapter for a temperature control head includes an external threaded section screwed to a cap of the temperature control head and an internal threaded section screwed to the valve body of a temperature control valve. The internal threaded section is located below the external threaded section, and the nominal diameter of the external thread of the external threaded section is different from the nominal diameter of the internal thread of the internal threaded section. An installation section is provided above the external threaded section, and a sliding rod that abuts against the valve stem of the temperature control head is slidably mounted on the installation section along its vertical direction.

[0007] In the aforementioned adapter for a temperature control head, a connecting section is provided between the external thread section and the internal thread section, and the lower end face of the connecting section abuts and limits the valve body of the temperature control valve.

[0008] In the above-mentioned adapter for a temperature control head, the upper end face of the external thread section abuts against the upper limit of the connecting seat of the temperature control head, and the distance S between the upper end face of the external thread section and the lower end face of the connecting section is equal to the length of the slide rod.

[0009] In the aforementioned adapter for a temperature control head, a relief groove is provided on the inner sidewall of the internal thread section, located above the internal thread.

[0010] In the adapter of the aforementioned temperature control head, the outer wall of the connecting section is recessed to form an annular groove.

[0011] In the aforementioned adapter for a temperature control head, the external thread section, the internal thread section, and the connecting section are an integral structure, and are processed using profiles.

[0012] In the aforementioned adapter for a temperature control head, the mounting section includes an annular portion and a mounting plate disposed at the upper end of the annular portion, and the mounting plate has a through hole in the middle for sliding of a slide rod.

[0013] In the aforementioned adapter for a temperature control head, the upper end of the slide rod is provided with an O-ring that abuts against the lower limit of the mounting plate, and the lower end is provided with a limiting boss that abuts against the upper limit of the mounting plate.

[0014] In the aforementioned adapter for a temperature control head, the upper end of the slide rod is provided with an annular groove, and the O-ring is disposed within the annular groove.

[0015] The outstanding advantages of this utility model compared to the prior art are:

[0016] This utility model adapter features an external threaded section that connects to the cap of the temperature controller and an internal threaded section that connects to the valve body of the temperature control valve. This allows the temperature controller to be compatible with two different valve bodies, eliminating concerns about the size of the purchased temperature controller and the valve body, and facilitating installation. Additionally, an installation section is provided above the external threaded section, and a sliding rod slides vertically along the installation section. The sliding rod abuts against the valve stem, effectively lengthening the valve stem. This ensures that the valve stem can still drive the control rod within the valve body, guaranteeing the basic operation of the temperature controller. Attached image description:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is an exploded view of this utility model.

[0020] Reference numerals: 1. Flower cap; 2. External thread section; 3. Internal thread section; 4. Mounting section; 4a. Annular part; 4b. Mounting plate; 5. Valve stem; 6. Slide rod; 7. Connecting section; 8. Connecting seat; 9. Unsinking groove; 10. Annular groove; 11. Through hole; 12. O-ring; 13. Limiting boss; 14. Annular groove. Detailed implementation method:

[0021] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3:

[0022] An adapter for a temperature control head includes an external thread section 2 that is screwed to a cap 1 of the temperature control head and an internal thread section 3 that is screwed to the valve body of a temperature control valve. The internal thread section 3 is located below the external thread section 2, and the nominal diameter of the external thread of the external thread section 2 is different from the nominal diameter of the internal thread of the internal thread section 3. An installation section 4 is provided above the external thread section 2, and a sliding rod 6 that abuts against the valve stem 5 of the temperature control head is slidably mounted on the installation section 4 along its vertical direction.

[0023] The working principle of this utility model is as follows: Figure 1-3 As shown, when the thermostatic valve cap 1 does not match the valve body and the adapter of this utility model is required, the external thread section 2 is screwed to the cap 1, and the upper end face of the external thread section 2 abuts against the connecting seat 8 of the thermostatic valve to limit the adapter. The internal thread section 3 is screwed to the valve body of the thermostatic valve, and the control rod inside the valve body, which originally abuts against the valve stem 5, abuts against the lower end of the slide rod 6. When the thermostatic valve cap 1 matches the valve body, the adapter of this utility model is not required. The valve body is screwed to the cap 1, and the control rod inside the valve body abuts against the lower end of the valve stem 5.

[0024] The adapter has two types of nominal diameters for the external thread of the external thread section 2 and the internal thread of the internal thread section 3. The first type has a nominal diameter of 30mm for the external thread of the external thread section 2 and a nominal diameter of 28mm for the internal thread of the internal thread section 3. This type is sold together with the temperature control head of the flower cap 1, which has a nominal internal thread diameter of 30mm. When the nominal diameter of the external thread of the user's valve body is 30mm, the adapter is not required. When the nominal diameter of the external thread of the user's valve body is 28mm, the adapter is required.

[0025] The second type has an external thread nominal diameter of 28mm and an internal thread nominal diameter of 30mm. It is sold together with the temperature control head of the flower cap 1 with an internal thread nominal diameter of 28mm. When the external thread of the user's valve body is 30mm, an adapter is required; when the external thread of the user's valve body is 28mm, no adapter is required.

[0026] This utility model adapter is equipped with an external threaded section 2 that screws onto the cap 1 of the temperature controller head and an internal threaded section 3 that screws onto the valve body of the temperature control valve. This allows the temperature controller head to be compatible with two different valve bodies, eliminating concerns about the size of the purchased temperature controller head and the valve body, and making installation convenient. At the same time, an installation section 4 is provided above the external threaded section 2, and a slide rod 6 is slidably mounted vertically on the installation section 4. The slide rod 6 abuts against the valve stem 5, which serves to lengthen the valve stem 5, thereby allowing the valve stem 5 to still drive the control rod inside the valve body to move, thus ensuring the basic operation of the temperature controller head.

[0027] In order to lengthen the slide rod 6 and facilitate the processing and assembly of the slide rod 6, a connecting section 7 is provided between the external thread section 2 and the internal thread section 3, and the lower end face of the connecting section 7 abuts and limits the valve body of the temperature control valve.

[0028] Furthermore, the upper end face of the external thread section 2 abuts against the upper limit of the connecting seat 8 of the temperature control head, and the distance S between the upper end face of the external thread section 2 and the lower end face of the connecting section 7 is equal to the length of the slide rod 6.

[0029] To facilitate tool retraction, a tool retraction groove 9 is provided on the inner sidewall of the internal thread section 3, located above the internal thread.

[0030] Furthermore, the outer wall of the connecting segment 7 is recessed to form an annular groove 10.

[0031] The structure of installation section 4 is as follows: Figure 2 , 3 As shown, the mounting section 4 includes an annular portion 4a and a mounting plate 4b disposed at the upper end of the annular portion 4a. The mounting plate 4b has a through hole 11 in the middle for the sliding rod 6 to slide.

[0032] Limiting structure of slide rod 6: The upper end of slide rod 6 is provided with an O-ring 12 that abuts against the mounting plate 4b at the lower limit, and the lower end is provided with a limiting boss 13 that abuts against the mounting plate 4b at the upper limit. The structure is simple and easy to process and install.

[0033] The limiting structure of the O-ring 12: The upper end of the slide rod 6 is provided with an annular groove 14, and the O-ring 12 is disposed in the annular groove 14.

[0034] Furthermore, the external thread section 2, the internal thread section 3, and the connecting section 7 are an integral structure and are processed using profiles, so that the appearance of the adapter is the same as that of the flower cap 1 of the temperature control head.

[0035] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made to the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. An adapter for a temperature control head, characterized in that: It includes an external thread section (2) that is screwed to the flower cap (1) of the temperature control head and an internal thread section (3) that is screwed to the valve body of the temperature control valve. The internal thread section (3) is located below the external thread section (2), and the nominal diameter of the external thread of the external thread section (2) is different from the nominal diameter of the internal thread of the internal thread section (3). An installation section (4) is provided above the external thread section (2), and a sliding rod (6) that abuts against the valve stem (5) of the temperature control head is slidably provided on the installation section (4) along the vertical direction.

2. The adapter for a temperature control head according to claim 1, characterized in that: A connecting section (7) is provided between the external thread section (2) and the internal thread section (3), and the lower end face of the connecting section (7) abuts against and limits the valve body of the temperature control valve.

3. The adapter for a temperature control head according to claim 2, characterized in that: The upper end face of the external thread section (2) abuts against the upper limit of the connecting seat (8) of the temperature control head, and the distance between the upper end face of the external thread section (2) and the lower end face of the connecting section (7) is equal to the length of the slide rod (6).

4. The adapter for a temperature control head according to claim 2, characterized in that: The inner wall of the internal thread section (3) is provided with a relief groove (9) located above the internal thread.

5. The adapter for a temperature control head according to claim 2, characterized in that: The outer wall of the connecting section (7) is recessed to form an annular groove (10).

6. The adapter for a temperature control head according to claim 1, characterized in that: The external thread section (2), internal thread section (3) and connecting section (7) are an integral structure and are processed using profiles.

7. The adapter for a temperature control head according to claim 1, characterized in that: The mounting section (4) includes an annular portion (4a) and a mounting plate (4b) disposed at the upper end of the annular portion (4a). The mounting plate (4b) has a through hole (11) in the middle for sliding of the slide rod (6).

8. The adapter for a temperature control head according to claim 7, characterized in that: The upper end of the slide rod (6) is provided with an O-ring (12) that abuts against the lower limit of the mounting plate (4b), and the lower end is provided with a limiting boss (13) that abuts against the upper limit of the mounting plate (4b).

9. The adapter for a temperature control head according to claim 8, characterized in that: The upper end of the slide bar (6) is provided with an annular groove (14), and the O-ring (12) is disposed in the annular groove (14).

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