Retainer and heater

Abstract

The utility model provides a retainer and a heater. The retainer comprises a retaining sheet, a fixing sheet, a pressing sheet, a stud and a bolt, a first center hole for the stud to penetrate through is formed in the middle of the fixing piece, a plurality of positioning holes are formed in the fixing piece around the first center hole, and a plurality of positioning grooves are formed in the outer edge of the fixing piece. The positioning holes and the positioning grooves are in one-to-one correspondence, and a clamping part is formed between each pair of positioning hole and positioning groove; clamping protrusions are arranged at the top end and the bottom end of the inner side of the retaining piece, and clamping grooves are formed in the sides, away from the inner side of the retaining piece, of the clamping protrusions at the top and the bottom of the retaining piece; a plurality of retaining holes for the electric heating wires to penetrate through are formed in the retaining sheet; a second center hole through which the bolt passes is formed in the middle of the pressing sheet; internal threads are arranged at the top end and the bottom end of the stud; the bolt is provided with an external thread; the contact area of the electric heating wire and liquid can be increased, the heating efficiency is improved, and the heating device can be used for heating corrosive liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of heaters, especially a kind of retainer and heater. BACKGROUND

[0002] In the field of semiconductor, chemical plating, photovoltaic etc., solution needs to be heated;And some processes involve liquid often have corrosive nature;The current market corrosion-resistant metal heater is very high in cost.

[0003] The design of heater also needs to consider heating efficiency, to improve the temperature of liquid in shorter time. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model embodiment provides a kind of retainer and heater, can increase the contact area of electric heating wire and liquid, improve the heating efficiency, simultaneously have excellent corrosion resistance, can be used for the heating of corrosive liquid.To achieve the above technical purpose, the technical scheme that the utility model embodiment adopts is as follows:

[0005] First, the utility model embodiment provides a kind of retainer, the retainer uses corrosion-resistant material, the retainer includes holding sheet, fixed sheet, pressing sheet, stud and bolt;

[0006] The first center hole for stud is provided in the middle of fixed sheet, a plurality of positioning holes are provided on fixed sheet around the first center hole, a plurality of positioning grooves are provided on the outer edge of fixed sheet;The positioning hole and positioning groove are one-to-one corresponding, and a clamping portion is formed between each pair of positioning hole and positioning groove;

[0007] The top end and bottom end of the inner side of holding sheet are each provided with clamping convex, and the side of the clamping convex on the top and bottom of holding sheet away from the inner side of holding sheet is provided with clamping groove;A plurality of holding holes for electric heating wire are provided on holding sheet;

[0008] The second center hole for bolt is provided in the middle of pressing sheet;

[0009] The top end and bottom end of stud are each provided with internal thread;

[0010] The bolt is provided with external thread;

[0011] One fixed sheet is arranged above and below the inner side of holding sheet;The clamping convex of the top end of the inner side of holding sheet is clamped into the positioning hole on one fixed sheet, and the clamping portion on one fixed sheet is clamped into the clamping groove of the top end of the inner side of holding sheet;The clamping convex of the bottom end of the inner side of holding sheet is clamped into the positioning hole on another fixed sheet, and the clamping portion on another fixed sheet is clamped into the clamping groove of the bottom end of the inner side of holding sheet;

[0012] The stud passes through the fixing sheet above the inner side of the retaining sheet and the fixing sheet below the inner side of the retaining sheet; one bolt passes through one pressing sheet and the fixing sheet above the inner side of the retaining sheet to connect the top end of the stud; another bolt passes through another pressing sheet and the fixing sheet below the inner side of the retaining sheet to connect the bottom end of the stud; thereby fixing the retaining sheet, the fixing sheet above and below the retaining sheet and the stud together;

[0013] The plurality of retaining sheets are arranged in a circumferential direction around the stud.

[0014] Further, the retaining hole on the retaining sheet is provided with multiple layers, and the retaining hole of each layer is provided with multiple retaining holes.

[0015] Further, the plurality of retaining sheets are arranged in a central symmetry around the stud.

[0016] Further, the retaining frame is made of PTFE material.

[0017] In the second aspect, the utility model provides a kind of heater, including the retaining frame as described above, and heating wire and lead wire;The heating wire and lead wire are all wrapped with corrosion-resistant insulating material.

[0018] The heating wire passes through the retaining hole in each retaining sheet, and the heating wire is arranged in multiple turns and multiple layers around the retaining frame, and the two ends of each heating wire are connected with lead wire respectively.

[0019] Further, the heating wire is in spiral shape.

[0020] Further, the corrosion-resistant insulating material wrapped with the heating wire and lead wire is PFA material.

[0021] The technical scheme provided by the utility model embodiment has the beneficial effects of:

[0022] 1) The heating wire has large contact area with liquid, and the heating efficiency is improved.

[0023] 2) The heating wire is stably retained on the retaining frame and will not be scattered.

[0024] 3) Good corrosion resistance, can be used for heating of corrosive liquid.

[0025] 4) Low cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a side view angle schematic diagram of the heater in the utility model embodiment.

[0027] Figure 2 It is a top view angle schematic diagram of the heater in the utility model embodiment.

[0028] Figure 3 It is a retaining sheet schematic diagram in the utility model embodiment.

[0029] Figure 4 It is fixed piece and tablet of the embodiment of the utility model shows a schematic diagram.

[0030] Figure 5 It is stud and bolt of the embodiment of the utility model shows a schematic diagram. DETAILED DESCRIPTION

[0031] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the embodiment, and the utility model is further detailed.The specific embodiments described herein are used to explain the utility model, and are not used to limit the utility model.

[0032] As Figures 1-5 The utility model form embodiment proposes a retainer 10, the retainer 10 adopts corrosion-resistant material, the retainer 10 includes retaining piece 101, fixed piece 102, tablet 103, stud 104 and bolt 105;

[0033] The fixed piece 102 middle is equipped with the first center hole 1021 for stud 104 to pass through, is equipped with a plurality of positioning holes 1022 around the first center hole 1021 on fixed piece 102, is equipped with a plurality of positioning grooves 1023 on the outer edge of fixed piece 102;The positioning hole 1022 and positioning groove 1023 correspond one by one, and form a clamping part 1024 between each pair of positioning hole 1022 and positioning groove 1023;

[0034] The top end and the bottom end of the inner side of the retaining piece 101 are equipped with clamping convex 1011, and the side away from the inner side of the retaining piece 101 is equipped with clamping groove 1012 on the clamping convex 1011 of the top and bottom of the retaining piece 101;A plurality of retaining holes 1013 for passing through the electric heating wire 20 are provided on the retaining piece 101;In the embodiment, the side of the retaining piece 101 towards the stud 104 is the inner side, and the other side is the outer side;

[0035] The tablet 103 middle is equipped with the second center hole 1031 for bolt 105 to pass through;

[0036] The top end and the bottom end of the stud 104 are equipped with internal thread;

[0037] The bolt 105 is equipped with external thread;

[0038] A fixing sheet 102 is arranged above and below the inner side of the holding sheet 101; the clamping protrusion 1011 at the top end of the inner side of the holding sheet 101 is clamped into the positioning hole 1022 of a fixing sheet 102, and the clamping portion 1024 of the fixing sheet 102 is clamped into the clamping groove 1012 at the top end of the inner side of the holding sheet 101; the clamping protrusion 1011 at the bottom end of the inner side of the holding sheet 101 is clamped into the positioning hole 1022 of another fixing sheet 102, and the clamping portion 1024 of the fixing sheet 102 is clamped into the clamping groove 1012 at the bottom end of the inner side of the holding sheet 101;

[0039] The stud 104 passes through the fixing sheet 102 above the inner side of the holding sheet 101 and the fixing sheet 102 below the inner side of the holding sheet 101; one bolt 105 passes through one pressing sheet 103 and the fixing sheet 102 above the inner side of the holding sheet 101 and connects the top end of the stud 104; another bolt 105 passes through another pressing sheet 103 and the fixing sheet 102 below the inner side of the holding sheet 101 and connects the bottom end of the stud 104; so as to fix the holding sheet 101, the fixing sheet 102 above and below the holding sheet 101 and the stud 104 together;

[0040] The plurality of holding sheets 101 are arranged at intervals in the circumferential direction around the stud 104.

[0041] In the embodiment, the heating wire 20 passes through the holding hole 1013 in each holding sheet 101, the heating wire 20 can be wound around the holding frame 10 for multiple turns, and can be distributed on multiple layers for multiple turns, the holding frame 10 can increase the length of the heating wire 20, increase the contact area of the heating wire 20 with the liquid to be heated, and improve the heating efficiency; at the same time, the holding frame 10 keeps the shape of the heating wire 20 wound around and does not scatter.

[0042] More preferably, the holding hole 1013 on the holding sheet 101 is provided with multiple layers, and the holding hole 1013 of each layer is provided with multiple holding holes; so that the heating wire 20 can be arranged on multiple layers on the holding frame 10.

[0043] More preferably, the plurality of holding sheets 101 are distributed in a central symmetry around the stud 104; so that the heating wire 20 can be arranged around the holding frame 10 for multiple turns in an orderly manner.

[0044] Specifically, the holding frame 10 is made of PTFE material, has good corrosion resistance, and can be applied to heating of corrosive liquid.

[0045] The utility model embodiment further provides a heater, including holding frame 10, heating wire 20 and lead wire 30, the heating wire 20 and lead wire 30 are all wrapped with corrosion -resistant insulating material;

[0046] The electric heating wire 20 passes through the holding hole 1013 in each holding piece 101, the electric heating wire 20 is arranged in multiple turns and multiple layers around the holder 10, and two ends of each electric heating wire 20 are connected with the lead wire 30 respectively;

[0047] In the embodiment, the holder 10, the electric heating wire 20 and the lead wire 30 all have corrosion resistance, so that the heater can be applied to heating of a corrosive liquid.

[0048] More preferably, the electric heating wire 20 is in a spiral shape; the spiral electric heating wire 20 can increase the contact area with the liquid to be heated, improve the heating efficiency, and quickly raise the temperature of the liquid.

[0049] The number of the electric heating wire 20 can be configured according to the actual use environment, for example, if the use environment is three-phase power, at least three electric heating wires 20 are needed.

[0050] Specifically, the corrosion-resistant insulating material wrapped outside the electric heating wire 20 and the lead wire 30 is PFA material, which has excellent corrosion resistance.

[0051] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A cage (10) characterized in that, The holder (10) is made of corrosion-resistant material, and comprises retaining pieces (101), fixing pieces (102), pressing pieces (103), studs (104) and bolts (105); The fixing piece (102) is provided with a first center hole (1021) for the stud (104) to pass through, and a plurality of positioning holes (1022) are arranged around the first center hole (1021) on the fixing piece (102), and a plurality of positioning grooves (1023) are arranged on the outer edge of the fixing piece (102); the positioning hole (1022) and the positioning groove (1023) correspond one by one, and a clamping part (1024) is formed between each pair of positioning hole (1022) and positioning groove (1023); The top end and the bottom end of the inner side of the retaining piece (101) are provided with clamping protrusions (1011), and the clamping protrusions (1011) on the top and bottom of the retaining piece (101) are provided with clamping grooves (1012) on the side away from the inner side of the retaining piece (101); a plurality of retaining holes (1013) are arranged on the retaining piece (101) for the electric heating wire (20) to pass through; The pressing piece (103) is provided with a second center hole (1031) for the bolt (105) to pass through; The top end and the bottom end of the stud (104) are provided with internal threads; The bolt (105) is provided with external threads; One fixing piece (102) is arranged above and below the inner side of the retaining piece (101); the clamping protrusion (1011) at the top end of the inner side of the retaining piece (101) is clamped into the positioning hole (1022) on one fixing piece (102), and the clamping part (1024) on one fixing piece (102) is clamped into the clamping groove (1012) at the top end of the inner side of the retaining piece (101); the clamping protrusion (1011) at the bottom end of the inner side of the retaining piece (101) is clamped into the positioning hole (1022) on the other fixing piece (102), and the clamping part (1024) on the other fixing piece (102) is clamped into the clamping groove (1012) at the bottom end of the inner side of the retaining piece (101); The stud (104) passes through the fixing piece (102) above the inner side of the retaining piece (101) and the fixing piece (102) below the inner side of the retaining piece (101); one bolt (105) passes through one pressing piece (103) and the fixing piece (102) above the inner side of the retaining piece (101), and connects the top end of the stud (104); the other bolt (105) passes through the other pressing piece (103) and the fixing piece (102) below the inner side of the retaining piece (101), and connects the bottom end of the stud (104); so as to fix the retaining piece (101), the fixing pieces (102) above and below the retaining piece (101), and the stud (104) together; A plurality of retaining pieces (101) are arranged in a circumferential direction around the stud (104).

2. The holder (10) according to claim 1, wherein The retaining holes (1013) on the retaining piece (101) are provided with multiple layers, and the retaining holes (1013) of each layer are provided in multiple.

3. The holder (10) according to claim 1, wherein The plurality of retaining pieces (101) are centrally symmetrically distributed around the stud (104).

4. The cage (10) according to claim 1, wherein, The cage (10) is made of PTFE material.

5. A heater characterized by, The heater comprises the cage (10) according to any one of claims 1-4, and the heating wire (20) and the lead wire (30); the heating wire (20) and the lead wire (30) are both coated with corrosion-resistant insulation material. The heating wire (20) passes through the retaining hole (1013) in each retaining piece (101), and the heating wire (20) is arranged in multiple turns and multiple layers around the cage (10); the two ends of each heating wire (20) are respectively connected to the lead wire (30).

6. The heater according to claim 5, wherein, The heating wire (20) is in a spiral shape.

7. The heater according to claim 5, wherein, The corrosion-resistant insulation material coating the heating wire (20) and the lead wire (30) is PFA material.

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