Diaphragm capsule seat plate of liquid expansion type temperature controller

Abstract

The utility model relates to the technical field of sleeves, in particular to a diaphragm capsule seat plate of a liquid expansion type temperature controller, which comprises a diaphragm capsule seat plate body, the diaphragm capsule seat plate body consists of a diaphragm capsule seat plate fixed end, a diaphragm capsule seat plate bending section, a diaphragm capsule seat plate middle section and a diaphragm capsule seat plate movable end, a fixing hole is arranged on the diaphragm capsule seat plate fixed end, and the diaphragm capsule seat plate bending section is arranged on the diaphragm capsule seat plate middle section. A main reinforcing plate and an auxiliary reinforcing plate are arranged on the bent section of the diaphragm capsule seat plate, a pressure spring positioning groove is formed in the middle section of the diaphragm capsule seat plate, an anti-disengaging ring is arranged on the pressure spring positioning groove, a mounting groove and a clamping sliding groove are formed in the movable end of the diaphragm capsule seat plate, and an extrusion spring and a mounting clamping block are arranged in the clamping sliding groove. The pressure spring is stably extruded and positioned on the middle section of the diaphragm capsule seat plate, so that the normal use of the liquid expansion type temperature controller is ensured, the replacement convenience of the porcelain push rod is improved, and the structural stability of 90-degree bending forming of the fixed end of the diaphragm capsule seat plate and the bending section of the diaphragm capsule seat plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeves, in particular to a diaphragm box seat plate of a liquid expansion type temperature controller. Background Art

[0002] Liquid expansion thermostat is a common temperature controller that uses the expansion properties of liquid to control. Liquid expansion thermostat is widely used in various industrial equipment, household appliances, automotive fields, etc. The principle of liquid expansion thermostat is to use the expansion and contraction of liquid when the temperature changes to control the switch of the circuit.

[0003] For example, a liquid expansion temperature controller is disclosed in publication number CN205069510U, including a base, a fixed plate, an adjusting shaft, a temperature-sensing tube, a capillary, a membrane box, a membrane box seat plate, a ceramic push rod and a contact switch, wherein the contact switch is fixed in a concave cavity of the base, the membrane box is mounted on the fixed plate through the adjusting shaft, the membrane box is connected to the temperature-sensing tube through the capillary, the membrane box acts on the middle section of the membrane box seat plate, the fixed end of the membrane box seat plate is fixed to the fixed plate, the ceramic push rod is fixed to the movable end of the membrane box seat plate and cooperates with the contact switch, the base is a ceramic base, which is fixed to the fixed plate by a first screw, a mounting ear with a through hole is provided on the side of the base close to the membrane box, the first screw passes through the through hole and is connected to the screw hole of the fixed plate, and the membrane box seat plate is bent into The cam is in the shape of a ladder, with its fixed end abutting against the fixed plate and being fixed together by a second screw, its movable end and middle section being in the shape of a cantilever, a screw hole being opened in the middle section and being connected with an adjusting screw which can be against the diaphragm box, a bending section being provided between the middle section and the fixed end, the capillary passing through between the fixed end of the diaphragm box seat plate and the fixed plate, one end of the capillary being connected with the temperature sensing tube, the other end of the capillary being connected with the diaphragm box, a rubber hose being sleeved on the outside of the capillary, the base having two mounting ears, the fixed plate having two folded edges, each folded edge being close to the corresponding mounting ears, the adjusting shaft being threadedly connected with the fixed plate, a limiting plate being provided on the adjusting shaft, the diaphragm box being installed at the inner end of the adjusting shaft, a compression spring being provided between the diaphragm box seat plate and the diaphragm box, the compression spring being hollowly sleeved on the adjusting screw, the fixing plate being fixed together with the outer shell, and the outer shell covering the diaphragm box seat plate.

[0004] The diaphragm box seat plate body of the existing liquid expansion type temperature controller is generally composed of a diaphragm box seat plate fixed end, a diaphragm box seat plate bending section, a diaphragm box seat plate middle section, and a diaphragm box seat plate movable end.

[0005] A compression spring will be arranged on the middle section of the diaphragm box seat plate, and a ceramic push rod will be installed at the movable end of the diaphragm box seat plate through a mounting seat. The ceramic push rod has certain thermal sensitivity, and combined with the elastic diaphragm box seat plate and the compression spring, temperature control perception and control circuit switching can be achieved.

[0006] However, the compression spring is only mounted on the screws preset on the middle section of the diaphragm box seat plate. When in use, the lower end surface of the compression spring and the flat surface of the middle section of the diaphragm box seat plate will slide, which will affect the normal use of the liquid expansion thermostat.

[0007] Moreover, the ceramic push rod is a consumable part and needs to be replaced due to aging after long-term use. However, the existing ceramic push rod is generally installed on the movable end of the membrane box seat plate through a mounting seat and screws. When removing it, a screwdriver needs to be used to turn and remove each screw, which greatly reduces the convenience of replacing the ceramic push rod.

[0008] In addition, there is a 90-degree bend between the fixed end of the membrane box seat plate and the bending section of the membrane box seat plate, and a fixing hole needs to be preset on the fixed end of the membrane box seat plate for later installation. However, after long-term use, the 90-degree bend is prone to deformation and fracture, which will affect the installation stability of the membrane box seat plate and reduce the structural stability of the 90-degree bend between the fixed end of the membrane box seat plate and the bending section of the membrane box seat plate.

[0009] The above problems are widespread and urgently need to be improved. Utility Model Content

[0010] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a diaphragm box seat plate for a liquid expansion type temperature controller.

[0011] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0012] A diaphragm box seat plate of a liquid expansion temperature controller is designed, including a diaphragm box seat plate body, which is composed of a diaphragm box seat plate fixed end, a diaphragm box seat plate bending section, a diaphragm box seat plate middle section, and a diaphragm box seat plate movable end. A fixing hole is provided on the diaphragm box seat plate fixed end, a main reinforcement plate and an auxiliary reinforcement plate are provided on the diaphragm box seat plate bending section, a compression spring positioning groove is provided on the middle section of the diaphragm box seat plate, an anti-slip ring is provided on the compression spring positioning groove, and an installation groove and a clamping slide groove are provided on the movable end of the diaphragm box seat plate, and an extrusion spring and an installation block are provided in the clamping slide groove.

[0013] Furthermore, the side section of the main reinforcement plate is a triangular structure, the main reinforcement plate is fixed at the fixed end of the membrane box seat plate and the 90-degree bending position of the membrane box seat plate bending section, and the auxiliary reinforcement plate is fixed between the main reinforcement plate and the membrane box seat plate bending section.

[0014] Furthermore, the main reinforcement plate and the auxiliary reinforcement plate form a group, which are three groups arranged in total. The auxiliary reinforcement plates are two vertically arranged, and the side section of the auxiliary reinforcement plate is an isosceles triangle structure.

[0015] Furthermore, the top-view cross-section of the compression spring positioning groove is a circular structure, and the center of the circular structure of the compression spring positioning groove is concentric with the center of the screw penetration hole.

[0016] Furthermore, the anti-slip ring is evenly laid along the side of the compression spring positioning groove, and the cross-section of the anti-slip ring is an elliptical structure.

[0017] Furthermore, the installation block is slidably connected to the connecting groove, and the two ends of the extrusion spring are respectively fixed to the installation block and the inner groove wall of the connecting groove. The side cross-section of the sliding connection part of the installation block and the connecting groove is a trapezoidal structure, and the inner groove side wall of the installation groove is provided with a damping and anti-slip layer.

[0018] Furthermore, the upper end surface of the mounting block is an inclined surface and the angle between the upper end surface and the horizontal plane is set to sixteen degrees, and the upper end surface of the mounting block is provided with a smooth coating.

[0019] The diaphragm box seat plate of the liquid expansion temperature controller proposed by the utility model has the following beneficial effects:

[0020] 1. The utility model provides a compression spring positioning groove on the middle section of the diaphragm box seat plate, and provides an anti-slip ring structure on the side wall of the compression spring positioning groove, so as to realize stable extrusion and positioning of the compression spring on the middle section of the diaphragm box seat plate, thereby avoiding sliding between the lower end surface of the compression spring and the flat surface of the middle section of the diaphragm box seat plate, thereby ensuring the normal use of the liquid expansion temperature controller.

[0021] 2. The utility model provides an installation groove and a clamping groove on the movable end of the diaphragm box seat plate, and arranges an extrusion spring and an installation block in the clamping groove. At the same time, a smooth coating is arranged on the installation block, so that the aged porcelain push rod can be conveniently replaced on the movable end of the diaphragm box seat plate, thereby improving the convenience of replacing the porcelain push rod.

[0022] 3. The utility model greatly improves the structural stability of the ninety-degree bending forming of the fixed end of the membrane box seat plate and the bending section of the membrane box seat plate by arranging a main reinforcement plate structure with a secondary reinforcement plate between the fixed end of the membrane box seat plate and the bending section of the membrane box seat plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a first-view stereoscopic view of the membrane box seat body of the utility model;

[0024] Figure 2 For the utility model Figure 1 Enlarged image at the center X;

[0025] Figure 3 It is a schematic diagram of a top view of the membrane box seat plate body of the utility model;

[0026] Figure 4 For the utility model Figure 3 Middle YY cross-section diagram;

[0027] Figure 5 This is a second perspective stereoscopic view of the membrane box seat plate body of the utility model;

[0028] Figure 6 For the utility model Figure 5 Enlarged view of the middle Z.

[0029] In the figure: 1 diaphragm box seat plate body; 2 diaphragm box seat plate fixed end; 21 fixing hole; 22 main reinforcement plate; 23 auxiliary reinforcement plate; 3 diaphragm box seat plate bending section; 4 diaphragm box seat plate middle section; 41 screw through hole; 5 diaphragm box seat plate movable end; 6 compression spring positioning groove; 61 anti-slip ring; 7 mounting groove; 71 damping and anti-skid layer; 8 clamping slide groove; 81 extrusion spring; 82 mounting block; 83 smooth coating. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Reference Figure 1-6 The diaphragm box seat plate of the liquid expansion type temperature controller comprises a diaphragm box seat plate body 1, which is composed of a diaphragm box seat plate fixed end 2, a diaphragm box seat plate bending section 3, a diaphragm box seat plate middle section 4, and a diaphragm box seat plate movable end 5. A fixing hole 21 is provided on the diaphragm box seat plate fixed end 2, a main reinforcement plate 22 and a secondary reinforcement plate 23 are provided on the diaphragm box seat plate bending section 3, a compression spring positioning groove 6 is provided on the diaphragm box seat plate middle section 4, an anti-slip ring 61 is provided on the compression spring positioning groove 6, an installation groove 7 and a clamping slide groove 8 are provided on the diaphragm box seat plate movable end 5, and an extrusion spring 81 and an installation block 82 are provided in the clamping slide groove 8. The diaphragm box seat plate body 1 is the relevant structure of the liquid expansion type temperature controller, which is the prior art. Some existing structures are not drawn and marked, and there is no need to repeat them.

[0032] In detail, the side cross-section of the main reinforcement plate 22 is a triangular structure. The main reinforcement plate 22 is fixed at the ninety-degree bending position of the fixed end 2 of the diaphragm box seat plate and the bending section 3 of the diaphragm box seat plate. The auxiliary reinforcement plate 23 is fixed between the main reinforcement plate 22 and the bending section 3 of the diaphragm box seat plate. The main reinforcement plate 22 and the auxiliary reinforcement plate 23 are both made of hard alloy tungsten steel, which has high strength, no deformation, corrosion resistance and durability.

[0033] Furthermore, the main reinforcement plate 22 and the auxiliary reinforcement plate 23 are a group, which are arranged in three groups in total. There are two auxiliary reinforcement plates 23 arranged vertically, and the side cross-section of the auxiliary reinforcement plate 23 is an isosceles triangle structure. The auxiliary reinforcement plate 23 with an isosceles triangle structure is combined with the main reinforcement plate 22 with a triangular structure, which greatly improves the structural stability of the ninety-degree bending forming of the fixed end 2 of the membrane box seat plate and the bending section 3 of the membrane box seat plate.

[0034] Furthermore, the top-view cross-section of the compression spring positioning groove 6 is a circular structure, and the center of the circular structure of the compression spring positioning groove 6 is concentric with the center of the screw through hole 41, ensuring that the screw can later pass through the screw through hole 41 and the spiral inner cavity of the compression spring.

[0035] Furthermore, the anti-slip ring 61 is evenly laid along the side of the compression spring positioning groove 6. The cross-section of the anti-slip ring 61 is an elliptical structure. The anti-slip ring 61 is made of highly elastic vulcanized rubber and has an anti-slip grid pattern on the surface, which can effectively position the compression spring squeezed into the compression spring positioning groove 6.

[0036] In more detail, the installation block 82 is slidably engaged on the engaging groove 8, and the two ends of the extrusion spring 81 are respectively fixed to the installation block 82 and the inner groove wall of the engaging groove 8, and the side cross-section of the sliding connection part between the installation block 82 and the engaging groove 8 is a trapezoidal structure, which prevents the installation block 82 from slipping out of the engaging groove 8.

[0037] In general, the inner groove side wall of the installation groove 7 is provided with a damping anti-skid layer 71, which is made of damping silicone material and has damping friction elasticity. Combined with the clamping effect of the installation block 82, the overall clamping installation stability of the ceramic push rod is guaranteed.

[0038] Finally, the upper end surface of the mounting block 82 is an inclined surface and the angle with the horizontal plane is set to sixteen degrees. The upper end surface of the mounting block 82 is provided with a smooth coating 83. The smooth coating 83 is a PVC polyethylene grease coating with a flat and smooth surface, wear resistance and durability, and excellent smoothness. Combined with the sixteen-degree inclined surface, the preset ceramic push rod can be quickly inserted into the mounting groove 7.

[0039] Working method: squeeze the preset compression spring into the compression spring positioning groove 6, at this time, the highly elastic anti-slip ring 61 will rebound and reset and effectively position the preset compression spring, so as to achieve stable extrusion and positioning of the compression spring on the middle section 4 of the diaphragm box seat plate, avoiding the sliding phenomenon between the lower end surface of the compression spring and the flat surface of the middle section 4 of the diaphragm box seat plate, thereby ensuring the normal use of the liquid expansion temperature controller.

[0040] In addition, if the ceramic push rod pre-installed in the installation groove 7 is aged and needs to be replaced, the installation blocks 82 on both sides are pushed toward the outside and retreated into the card-joining slide groove 8. At this time, the extrusion spring 81 is compressed and deformed, and then the aged ceramic push rod can be easily removed from the installation groove 7. Then, the new ceramic push rod is put into the installation groove 7, and the installation blocks 82 on both sides are loosened. The extrusion spring 81 rebounds and drives the installation blocks 82 on both sides to slide toward each other along the card-joining slide groove 8 and quickly card-join and position the ceramic push rod for installation, so that the aged ceramic push rod can be conveniently replaced on the movable end 5 of the membrane box seat plate, thereby improving the convenience of replacing the ceramic push rod.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A diaphragm box seat plate of a liquid expansion thermostat, comprising a diaphragm box seat plate body (1), characterized in that: The membrane box seat plate body (1) is composed of a membrane box seat plate fixed end (2), a membrane box seat plate bending section (3), a membrane box seat plate middle section (4), and a membrane box seat plate movable end (5). The membrane box seat plate fixed end (2) is provided with a fixing hole (21), the membrane box seat plate bending section (3) is provided with a main reinforcement plate (22) and a secondary reinforcement plate (23), the membrane box seat plate middle section (4) is provided with a compression spring positioning groove (6), and the compression spring positioning groove (6) is provided with an anti-slip ring (61), and the membrane box seat plate movable end (5) is provided with a mounting groove (7) and a clamping slide groove (8), and the clamping slide groove (8) is provided with a compression spring (81) and a mounting clamping block (82).

2. The diaphragm box seat plate of the liquid expansion thermostat according to claim 1, characterized in that: The side cross-section of the main reinforcing plate (22) is a triangular structure. The main reinforcing plate (22) is fixedly arranged at a 90-degree bend between the fixed end (2) of the membrane box seat plate and the bending section (3) of the membrane box seat plate. The auxiliary reinforcing plate (23) is fixedly arranged between the main reinforcing plate (22) and the bending section (3) of the membrane box seat plate.

3. The diaphragm box seat plate of the liquid expansion thermostat according to claim 2, characterized in that: The main reinforcement plate (22) and the auxiliary reinforcement plate (23) form a group, with a total of three groups arranged in an arranged manner. The auxiliary reinforcement plates (23) are two arranged vertically, and the side cross-section of the auxiliary reinforcement plate (23) is an isosceles triangle structure.

4. The diaphragm box seat plate of the liquid expansion thermostat according to claim 1, characterized in that: The top-view cross-section of the compression spring positioning groove (6) is a circular structure, and the center of the circular structure of the compression spring positioning groove (6) is concentric with the center of the screw through hole (41).

5. The diaphragm box seat plate of the liquid expansion thermostat according to claim 1, characterized in that: The anti-slip ring (61) is evenly laid along the side of the compression spring positioning groove (6), and the cross-section of the anti-slip ring (61) is an elliptical structure.

6. The diaphragm box seat plate of the liquid expansion thermostat according to claim 1, characterized in that: The mounting block (82) is slidably engaged with the engaging slide groove (8), and two ends of the extrusion spring (81) are respectively fixedly arranged on the mounting block (82) and the inner groove wall of the engaging slide groove (8), and the side cross-section of the sliding connection portion between the mounting block (82) and the engaging slide groove (8) is a trapezoidal structure, and the inner groove side wall surface of the mounting groove (7) is provided with a damping anti-slip layer (71).

7. The diaphragm box seat plate of the liquid expansion thermostat according to claim 6, characterized in that: The upper end surface of the installation block (82) is an inclined surface and the angle between the upper end surface and the horizontal plane is set to sixteen degrees. The upper end surface of the installation block (82) is provided with a smooth coating (83).

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