A data recorder and assembly method thereof

Abstract

The invention relates to a data recorder and an assembly method thereof. A protective tube is arranged at the front end so that the Teflon one-piece molded wire is not easily damaged when being bent. An elastic component is arranged in the top shell. In an environment of thermal expansion and contraction, the elastic component applies a stable pressure, so that in the case of high and low temperatures, the force of squeezing the sealing gasket is relatively balanced, so that the sealing gasket can stably play a sealing role.

Description

Technical Field

[0001] The present invention relates to the technical field of data recorders, and in particular to a data recorder and an assembly method thereof. Background Art

[0002] Existing data loggers generally use Teflon wire (also known as Teflon wire), because Teflon (Teflon) has the following characteristics: non-stickiness, heat resistance, sliding, moisture resistance, wear resistance, corrosion resistance, etc. Therefore, compared with other high-temperature wires, Teflon wire has the following characteristics: excellent thermal stability and mechanical wear resistance and electrical insulation performance, strong acid and alkali resistance, corrosion resistance, fire resistance and non-flammability, high oxygen index, low smoke and halogen-free, no aging, easy stripping, high strength and friction resistance. But at the same time, the use of Teflon wire also has some defects that need to be overcome. Due to the non-stickiness of Teflon, it cannot be tightly combined with stainless steel. Especially in environments with different temperatures and pressures, various materials are more likely to produce gaps due to thermal expansion and contraction, resulting in leakage and failure of the sealing structure; and Teflon wire is generally a consumable material. After the skin is broken and damaged, liquid can flow into the metal wire core. Summary of the invention

[0003] In view of the above situation, it is necessary to propose a data logger with improved sealing performance and an assembly method thereof.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a data recorder, comprising:

[0005] Teflon one-piece molding line;

[0006] A protective tube, wrapping and sealing the Teflon one-piece molding wire;

[0007] A top shell, the top end surface of which is provided with a mounting seat, and an accommodating cavity is provided inside the top shell, the mounting seat is adapted to the protection tube, and the Teflon integral molding line extends into the accommodating cavity and has a seat body adapted to the top shell;

[0008] An elastic component is disposed in the accommodating cavity, with one end abutting against the top of the top shell and the other end abutting against the seat body;

[0009] A connecting seat, sealed and connected to the bottom of the top shell, wherein a wire hole is provided in the middle thereof for the metal wire core of the Teflon integrally formed wire to extend into;

[0010] A sealing gasket is arranged between the seat body and the connecting seat, and the elastic component has a restoring force to abut against the sealing gasket through the seat body;

[0011] The middle shell is sealed and connected to the top shell, and has an end surface that contacts and cooperates with the sealing gasket.

[0012] Furthermore, a mounting hole is provided in the middle shell, a conductor is provided in the mounting hole, an insulating sealing sleeve is provided between the middle shell and the conductor in the mounting hole, and the conductor is electrically connected to the metal wire core; and a bottom shell is also included, which is sealed and connected to the middle shell, and a sealed cavity is formed inside the bottom shell, and the conductor extends into the sealed cavity.

[0013] Furthermore, the insulating sealing sleeve has a convex cap abutting against the upper end surface of the middle shell, and the conductor has a cap abutting against the convex cap.

[0014] Furthermore, the lower end of the insulating sealing sleeve exceeds the middle shell, and the lower end of the conductor exceeds the insulating sealing sleeve and is connected with a nut.

[0015] Furthermore, the elastic component includes a spring and a spring washer, and the spring washer is placed between the spring and the seat body of the Teflon integrally molded wire.

[0016] Furthermore, at least one convex ring is provided on both sides of the sealing gasket, and the seat body and the connecting seat are provided with limiting grooves matched with the convex rings.

[0017] Furthermore, a plug hole is provided on a side of the seat body facing the connecting seat, and the connecting seat has a convex tube extending into the plug hole, and the metal wire core extends out of the convex tube.

[0018] Furthermore, the top shell and the connecting seat are threadedly connected, so that the elastic component always has a restoring force.

[0019] Furthermore, an insulating sealing sleeve is arranged between the conductor and the middle shell, the insulating sealing sleeve has a convex cap abutting against the upper end surface of the middle shell, and the conductor has a cap abutting against the convex cap.

[0020] Furthermore, the lower end of the insulating sealing sleeve exceeds the middle shell, and the lower end of the conductor exceeds the insulating sealing sleeve and is connected with a nut.

[0021] Furthermore, the protection tube is welded to the top shell as a whole, the top shell is welded and sealed to the connecting seat, the connecting seat is welded and sealed to the middle shell, and the middle shell is welded and sealed to the bottom shell.

[0022] The present invention also provides a method for assembling a data logger, comprising the above-mentioned data logger, and comprising the following steps:

[0023] Step 1: Heat-melt the Teflon one-piece wire into one piece, and peel off the metal wire core at the end of the wire;

[0024] Step 2: Weld the Teflon wire protection tube and the top shell into one piece;

[0025] Step 3: Pass the Teflon one-piece molded wire through the spring gasket and then through the middle of the spring, and put it into the accommodating cavity of the top shell; then put the sealing gasket at the bottom of the Teflon one-piece molded wire; finally, tighten and fix it through the connecting seat and the top shell thread, and weld the connection between the connecting seat and the top shell to seal;

[0026] Step 4: Apply sealant to the inner and outer threads of the insulating sealing sleeve, screw it into the middle shell, then screw the conductor in, and place it in the air to wait for the sealant to solidify;

[0027] Step 5: Solder the metal wire core stripped in step 1 to the conductor;

[0028] Step 6: Weld the connection seat and the middle shell together to seal them; then weld the middle shell and the bottom shell together to seal them.

[0029] The beneficial effects of the present invention are as follows: a protective tube is provided at the front end so that the Teflon integral molding line is not easily damaged when being bent; an elastic component is provided in the top shell, and in an environment of thermal expansion and contraction, the elastic component applies a stable pressure, so that in the case of high and low temperatures, the force of squeezing the sealing gasket is relatively balanced, so that the sealing gasket can stably play a sealing role. In addition, the accommodating cavity formed in the top shell can accommodate a portion of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic cross-sectional structural diagram of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the appearance structure of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0032] Figure 3 It is a structural schematic diagram of a protection tube of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0033] Figure 4 It is a structural schematic diagram of a top shell of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0034] Figure 5 It is a schematic cross-sectional structure diagram of a connection socket of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0035] Figure 6 It is a structural schematic diagram of a connection socket of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0036] Figure 7 It is a structural schematic diagram of a sealing gasket of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0037] Figure 8It is a structural schematic diagram of a middle shell of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0038] Fig. 9 It is a schematic cross-sectional structure diagram of an insulating sealing sleeve of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0039] Fig.10 It is a schematic diagram of the primary protection of a data recorder and an assembly method thereof according to an embodiment of the present invention;

[0040] Fig.11 It is a schematic diagram of secondary protection of a data recorder and an assembly method thereof according to an embodiment of the present invention.

[0041] Description of labels:

[0042] 100, Teflon integrally molded wire; 110, metal wire core; 120, seat body; 121, jack;

[0043] 200, protective tube; 210, connecting portion; 220, sleeve portion; 300, top shell; 310, mounting seat;

[0044] 320, first threaded portion; 400, elastic component; 410, spring; 420, spring washer;

[0045] 500, connecting seat; 510, wire hole; 520, convex tube; 530, second threaded portion;

[0046] 540, first nesting portion; 550, limiting groove; 600, sealing gasket; 610, convex ring; 700, middle shell;

[0047] 710, second nesting portion; 720, convex body; 730, mounting hole; 810, conductor; 811, cap;

[0048] 820, insulating sealing sleeve; 821, convex cap; 830, nut; 900, bottom shell; 910, sealing chamber;

[0049] 10. Welding point; 20. First-level protection water ingress simulation path; 30. Second-level protection water ingress simulation path. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, a data logger and its assembly method of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] Please refer to Figure 1-Figure 11 , a data logger comprising:

[0052] Teflon one-piece molding line 100;

[0053] A protective tube 200 wraps and seals the Teflon integrally formed wire 100;

[0054] The top shell 300 has a mounting seat 310 on its top end surface, and a receiving cavity is provided inside the mounting seat 310, the mounting seat 310 is adapted to the protection tube 200, and the Teflon integral molding line 100 extends into the receiving cavity and has a seat body 120 adapted to the top shell 300;

[0055] The elastic component 400 is disposed in the accommodating cavity, with one end abutting against the top of the top shell 300 and the other end abutting against the base body 120;

[0056] The connecting seat 500 is sealed and connected to the bottom of the top shell 300, and a wire hole 510 is provided in the middle thereof for the metal wire core 110 of the Teflon integrally molded wire 100 to extend into;

[0057] The sealing gasket 600 is disposed between the seat body 120 and the connecting seat 500, and the elastic component 400 has a restoring force to abut against the sealing gasket 600 through the seat body 120;

[0058] The middle shell 700 is sealed and connected to the top shell 300, and has an end surface that contacts and cooperates with the sealing gasket.

[0059] The protective tube 200 is provided at the front end so that the Teflon integrated molding wire 100 is not easily damaged when being bent; the elastic component 400 is provided in the top shell 300. In the environment of thermal expansion and contraction, the elastic component 400 applies a stable pressure, so that the force of squeezing the sealing gasket 600 is relatively balanced under high and low temperature conditions, so that the sealing gasket 600 can stably play a sealing role. And the accommodating cavity formed in the top shell 300 can accommodate a part of the liquid.

[0060] Please refer to Figure 1 , Figure 8 and Fig.11 The middle shell 700 is provided with a mounting hole 730, and a conductor 810 is provided in the mounting hole 730. An insulating sealing sleeve 820 is provided between the middle shell 700 and the conductor 810 in the mounting hole 730, and the conductor 810 is electrically connected to the metal wire core 110; it also includes a bottom shell 922, and the bottom shell 900 is sealed and connected to the middle shell 700, and a sealed cavity 910 is formed inside it, and the conductor 810 extends into the sealed cavity 910. The middle shell 700 and the bottom shell 900 are provided under the connecting seat 500 for secondary protection. Even if the Teflon one-piece molded wire 100 is damaged and liquid enters from the metal wire core 110, it will be blocked by the insulating sealing sleeve 820 and the sealed cavity of the bottom shell 900, thereby improving the sealing performance. That is, through the sealing structure of the present invention, the disadvantages caused by thermal expansion and contraction can be overcome, the environmental adaptability is strong, and the sealing performance is greatly improved through secondary sealing.

[0061] Please refer to Figure 1 The insulating sealing sleeve 820 has a convex cap 821 that abuts against the upper end surface of the middle shell 700, and the conductor 810 has a cap 811 that abuts against the convex cap 821. The arrangement of the convex cap 821 and the cap 811 can ensure the stability of the position of the conductor 810 and prevent the conductor 810 from slipping out of the insulating sealing sleeve 820 during long-term use. In particular, the insulating sealing sleeve 820 is adhesively connected to the middle shell 700 and the conductor 810 respectively.

[0062] Please refer to Figure 1 The lower end of the insulating sealing sleeve 820 exceeds the middle shell 700, and the lower end of the conductor 810 exceeds the insulating sealing sleeve 820 and is connected with a nut 830. The nut 830 is set, and the upper and lower ends of the conductor 810 are restricted to ensure the stability of the position of the conductor 810 and improve safety. It can be understood that the insulating sealing sleeve 820 can be made of insulating materials such as plastic or rubber as needed. In addition, the nut 830 can increase the surface area, which is conducive to welding and wiring below.

[0063] In particular, please refer to Figure 1 , Figure 8 and Fig. 9 The conductor 810 has external threads, the insulating sealing sleeve 820 has internal threads and external threads, the mounting hole 730 of the middle shell 700 has internal threads, the conductor 810 is threadedly connected with the insulating sealing sleeve 820, and the middle shell 700 is threadedly connected with the insulating sealing sleeve 820. Glue is injected between the conductor 810 and the insulating sealing sleeve 820, and between the insulating sealing sleeve 820 and the middle shell 700 to form a sealant layer.

[0064] Please refer to Figure 1 The elastic component 400 includes a spring 410 and a spring washer 420, and the spring washer 420 is placed between the spring 410 and the seat body 120 of the Teflon integral molding wire 100. The spring 410 abuts against the spring washer 420, which can make the seat body 120 and the sealing gasket 600 bear force better and more evenly, so that the sealing gasket 600 can better exert the sealing performance when deforming.

[0065] Please refer to Figure 1 , Figure 5 and Figure 7 , at least one bead 610 is provided on both sides of the sealing gasket 600, and the seat body 120 and the connecting seat 500 are provided with a limiting groove 550 adapted to the bead 610. Extruding the bead 610 can make the sealing gasket 600 deform better, and the bead 610 and the limiting groove 550 are used to limit the position, thereby avoiding the deviation of the sealing gasket 600 and ensuring the sealing performance. It can be understood that when more than one bead 610 is provided, the bead 610 is concentrically arranged with different diameters, and the width can be set as needed, and the limiting groove 550 is adapted to the bead 610.

[0066] Please refer to Figure 1 and Figure 5 The socket 120 is provided with a plug hole 121 on one side facing the connection socket 500, and the connection socket 500 has a protruding tube 520 extending into the plug hole 121, and the metal wire core 110 extends from the protruding tube 520. The plug hole 121 and the protruding tube 520 are arranged so that the protruding tube 520 and the plug hole 121 are nested and matched, which can ensure the position of the socket 120 and prevent the socket 120 from being offset.

[0067] Please refer to Figure 1 and Figure 5 The top shell 300 and the connecting seat 500 are threadedly connected, so that the elastic component 400 always has a restoring force. The threaded connection can conveniently adjust the compression stroke of the elastic component 400, thereby adjusting the restoring force of the elastic component 400, so that the sealing gasket 600 can be subjected to the required constant pressure.

[0068] Please refer to Fig.10 The protection tube 200 and the top shell 300 are welded together to facilitate assembly and processing.

[0069] Please refer to Fig.10 The top shell 300 and the connecting seat 500 are welded and sealed, the connecting seat 500 and the middle shell 700 are welded and sealed, and the middle shell 700 and the bottom shell 900 are welded and sealed. The welding seal is not only stable, but also has guaranteed sealing. Fig.10 The welding point 10 is a full circle welding, thereby forming a seal.

[0070] In particular, please refer to Figure 1 and Figure 3 The protection tube 200 includes an integrally formed connecting portion 210 and a sleeve portion 220; the connecting portion 210 wraps the Teflon integrally formed wire 100 and has an interference fit with the Teflon integrally formed wire 100; preferably, the opening of the connecting portion 210 has an open chamfer to avoid scratching the Teflon integrally formed wire 100 and facilitate assembly; the outer peripheral wall of the connecting portion 210 is provided with a thread for connecting other external components; the sleeve portion 220 is used to be sleeved with the mounting seat 310, and the sleeve portion 220 can be clearance-fitted with the Teflon integrally formed wire 100, thereby facilitating the assembly of the Teflon integrally formed wire 100.

[0071] In particular, please refer to Figure 1 , Figure 5 and Figure 8The top shell 300 has a first threaded portion 320 at the bottom, and the connection seat 500 also includes a second threaded portion 530 threadedly connected with the first threaded portion 320 of the top shell 300, and a first nested portion 540 matched with the middle shell 700. Sufficient welding space is reserved between the connection seat 500 and the middle shell 700 to facilitate welding of the metal wire core 110 and the conductor 810. The middle shell 700 includes a second nested portion 710 nested with the first nested portion 540, and a convex body 720 welded with the bottom shell 900. Generally, the second nested portion 710 is nested in the first nested portion 540, and the convex body 720 is slightly convex toward the sealing cavity 910. The stepped end surface formed by the convex body 720 is welded and sealed with the bottom shell 900.

[0072] The sealing gasket 600 can be made of flexible and deformable materials such as rubber, silicone, etc. as needed. The protective tube 200, the top shell 300, the middle shell 700, the connecting seat 500, the bottom shell 900, etc. can all be made of metal materials such as stainless steel. The outer skin of the Teflon integrated molding wire 100 is generally selected from Teflon PTFE, Teflon FEP, Teflon PFA, Teflon ETFE; the material of the metal wire core 110 is selected from suitable metals or alloys such as aluminum, copper, silver and their alloys as needed.

[0073] The data recorder of the present invention has a secondary seal. For details, please refer to Fig.10 and Fig.11 :

[0074] Primary seal, please refer to Fig.10 , the Teflon one-piece molded wire 100 is not damaged, and the possible direction of liquid entry, that is, the first-level protection water inlet simulation path 20 is: from the gap between the protection tube 200 and the Teflon one-piece molded wire 100 - the gap between the top shell 300 and the Teflon one-piece molded wire 100 - the accommodating cavity - the gap between the seat body 120 and the top shell 300 - the sealing gasket 600; it needs to go through the above layers of sealing protection, and the sealing gasket 600 serves as an important barrier; and the accommodating cavity can also store a certain amount of liquid.

[0075] Secondary seal, please refer to Fig.11 , the Teflon one-piece molded wire 100 is damaged, and the possible direction of liquid entry, that is, the secondary protection water inlet simulation path 30 is: from the Teflon one-piece molded metal wire core 110-the wire hole 510 of the connecting seat 500-the gap between the insulating sealing sleeve 820 and the middle shell 700 / conductor 810-the sealed cavity 910 of the bottom shell 900; even if the Teflon one-piece molded wire 100 is damaged, the liquid enters from the metal wire core 110, and it will be blocked by the middle shell 700 and the bottom shell 900.

[0076] The present invention also provides a method for assembling a data logger, comprising the above-mentioned data logger, and comprising the following steps:

[0077] Step 1: Heat-melt the Teflon integrally formed wire 100 into one piece, and peel off the metal wire core 110 at the wire tail;

[0078] Step 2: Weld the Teflon wire protection tube 200 and the top shell 300 into one;

[0079] Step 3: Pass the Teflon one-piece molded wire 100 through the spring gasket 420 and then through the middle of the spring 410, and put it into the accommodating cavity of the top shell 300; then put the sealing gasket 600 on the bottom of the Teflon one-piece molded wire 100 (on the seat body 120); finally, tighten and fix the connecting seat 500 and the top shell 300 by threading, and weld the connection between the connecting seat 500 and the top shell 300 to seal;

[0080] Step 4: Apply sealant to the inner and outer threads of the insulating sealing sleeve 820, screw it into the middle shell 700, then screw the conductor 810 in, and place it in the air to wait for the sealant to solidify;

[0081] Step 5: Weld the metal wire core 110 stripped in step 1 to the conductor 810;

[0082] Step 6: Connect the connection base 500 and the middle shell 700 by welding and sealing; then weld the middle shell 700 and the bottom shell 900 by welding and sealing.

[0083] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0084] In summary, the data recorder and its assembly method provided by the present invention have a protective tube at the front end to prevent the Teflon one-piece molding line from being easily damaged when being bent; an elastic component is provided in the top shell, and in the environment of thermal expansion and contraction, the elastic component applies a stable pressure, so that in the case of high and low temperatures, the force of squeezing the sealing gasket is relatively balanced, so that the sealing gasket can play a stable sealing role; a middle shell and a bottom shell are provided under the connecting seat for secondary protection to improve the sealing performance. That is, through the sealing structure of the present invention, the disadvantages caused by thermal expansion and contraction can be overcome, the environmental adaptability is strong, and the sealing performance is greatly improved through the secondary sealing.

[0085] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A data logger, characterized in that: include: Teflon one-piece molding line; A protective tube, provided with a through hole for the Teflon integrally formed wire to pass through; A top shell, the top end surface of which is provided with a mounting seat, and an accommodating cavity is provided inside the top shell, the mounting seat is adapted to the protection tube, and the Teflon integral molding line extends into the accommodating cavity and has a seat body adapted to the top shell; An elastic component is disposed in the accommodating cavity, with one end abutting against the top of the top shell and the other end abutting against the seat body; A connecting seat, sealed and connected to the bottom of the top shell, wherein a wire hole is provided in the middle thereof for the metal wire core of the Teflon integrally formed wire to extend into; A sealing gasket is arranged between the seat body and the connecting seat, and the elastic component has a restoring force to abut against the sealing gasket through the seat body; A middle shell, sealed to the top shell and having an end surface contacting and cooperating with the sealing gasket; The middle shell is provided with a mounting hole, a conductor is provided in the mounting hole, an insulating sealing sleeve is provided between the middle shell and the conductor in the mounting hole, and the conductor is electrically connected to the metal wire core; and further comprises a bottom shell, the bottom shell is sealed and connected to the middle shell, a sealed cavity is formed inside the bottom shell, and the conductor extends into the sealed cavity; The insulating sealing sleeve has a convex cap abutting against the upper end surface of the middle shell, and the conductor has a cap abutting against the convex cap; The lower end of the insulating sealing sleeve exceeds the middle shell, and the lower end of the conductor exceeds the insulating sealing sleeve and is connected with a nut.

2. A data recorder according to claim 1, characterized in that: The elastic component comprises a spring and a spring washer, and the spring washer is placed between the spring and the seat body of the Teflon integrally formed wire.

3. A data recorder according to claim 1, characterized in that: At least one convex ring is provided on both sides of the sealing gasket, and both the seat body and the connecting seat are provided with limiting grooves matched with the convex ring.

4. A data recorder according to claim 1, characterized in that: A plug hole is arranged on one side of the seat body facing the connecting seat, and the connecting seat has a convex tube extending into the plug hole, and the metal wire core extends out from the convex tube.

5. A data recorder according to claim 1, characterized in that: The top shell and the connecting seat are threadedly connected, so that the elastic component always has a restoring force.

6. A data recorder according to claim 1, characterized in that: The protection tube is welded to the top shell as a whole, the top shell is welded and sealed to the connecting seat, the connecting seat is welded and sealed to the middle shell, and the middle shell is welded and sealed to the bottom shell.

7. A method for assembling a data logger, characterized in that: The assembly method is applied to a data logger as claimed in claim 2 and comprises the following steps: Step 1: Heat-melt the Teflon one-piece wire into one piece, and peel off the metal wire core at the end of the wire; Step 2: Weld the Teflon one-piece wire protection tube and the top shell into one piece; Step 3: Pass the Teflon one-piece molded wire through the spring gasket and then through the middle of the spring, and put it into the accommodating cavity of the top shell; then put the sealing gasket at the bottom of the Teflon one-piece molded wire; finally, tighten and fix it through the connecting seat and the top shell thread, and weld the connection between the connecting seat and the top shell to seal; Step 4: Apply sealant to the inner and outer threads of the insulating sealing sleeve, screw it into the middle shell, then screw the conductor in, and place it in the air to wait for the sealant to solidify; Step 5: Solder the metal wire core stripped in step 1 to the conductor; Step 6: Weld the connection seat and the middle shell together to seal them; then weld the middle shell and the bottom shell together to seal them.

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