Exhaust-hole-free infrared lamp tube

Abstract

The utility model belongs to the technical field of lamp tubes, and discloses an infrared lamp tube without exhaust holes, which comprises a lamp tube, a lamp filament arranged in the lamp tube and a lamp base connected with the lamp filament, through holes are arranged at two ends of the lamp tube, and lamp caps are arranged at two ends of the lamp tube. The lamp holder comprises an inner sleeve and an outer sleeve which are integrally formed, the end of the inner sleeve and the end of the outer sleeve are integrally connected with a spacer sleeve, the lamp base penetrates through the spacer sleeve, an inserting groove is formed between the inner sleeve and the outer sleeve, a rubber sleeve is installed on the inner sleeve, an inserting column is vertically installed on the rubber sleeve, the inserting column is made of soft rubber, and the outer sleeve is sleeved with the rubber sleeve. A through hole is formed in the outer sleeve, an inserting column is arranged in the outer sleeve, the position and the size of the inserting column correspond to the through hole, the outer sleeve is provided with an auxiliary hole, the position and the size of the auxiliary hole correspond to the position and the size of the through hole, the inserting column is provided with a fixing groove, and a fixing plate is installed in the fixing groove in a matched mode. Therefore, the problem of air leakage of the hole in the lamp holder is fundamentally solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamp tubes, and in particular relates to an infrared lamp tube without exhaust holes. Background Art

[0002] Infrared lamps, also called infrared heating tubes, are made by inserting tungsten filaments into gas-filled quartz tubes. The tungsten filaments generate heat under the action of AC voltage and heat the gas in the quartz tube, thereby generating infrared radiation. In order to ensure the service life, inert gas is often filled into the lamp tube to protect the tungsten filaments.

[0003] At present, the common method of filling the inert gas is to fill the lamp tube with gas through the one-way air holes and exhaust ports reserved on the lamp heads after the lamp heads at both ends of the lamp tube are installed. When relevant personnel conducted durability tests on lamp tubes with such structures, they found that during the use of such lamp tubes, there is a possibility of gas leakage from the one-way air holes and exhaust ports, which in turn shortens the life of the internal tungsten filament and reduces the overall service life. Therefore, how to achieve a structure that can add gas while reducing the leakage rate or even preventing leakage is a technical issue that needs to be considered at present. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide an infrared lamp tube without exhaust holes.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] An infrared lamp tube without exhaust holes comprises a lamp tube, a filament installed inside the lamp tube, and a lamp foot connected to the filament, through holes are provided at both ends of the lamp tube, and lamp caps are installed at both ends of the lamp tube;

[0007] The lamp holder includes an integrally formed inner sleeve and outer sleeve, the ends of the inner sleeve and the outer sleeve are integrally connected with a stop sleeve, the lamp pin passes through the stop sleeve, a slot is formed between the inner sleeve and the outer sleeve, the width of the slot is equal to the wall thickness of the lamp tube, the inner sleeve is installed with a rubber sleeve, the rubber sleeve is vertically installed with a plug, the plug is soft rubber, the position and size of the plug corresponds to the through hole, the outer sleeve is provided with an auxiliary hole whose position and size correspond to the through hole, the plug is provided with a fixing groove, and the fixing groove is matched with a fixing plate.

[0008] It is further defined that the through hole passes through two side walls of the lamp tube, and there are two through holes on a side surface of one end of the lamp tube. Such a design enhances the fixing effect of the lamp holder and the overall structural strength after installation.

[0009] It is further defined that the plug post and the rubber sleeve are integrally formed, and such a design will not cause the problem of fracture under pressure.

[0010] It is further defined that the plug post and the through hole are interference fit, and such a design ensures a sealing effect.

[0011] It is further defined that the inner sleeve, the outer sleeve and the baffle sleeve are all made of heat-insulating ceramic material. This design prevents heat from affecting the rubber sleeve.

[0012] The beneficial effects of adopting the utility model are:

[0013] The process of the utility model adopts the sealing and exhausting integrated process setting, so there is no need to punch holes in the lamp holder, thus fundamentally solving the problem of air leakage in the holes on the lamp holder;

[0014] With the structural design of the utility model, the sealing is ensured under the double sealing of the inner sleeve and the outer sleeve, and the installation strength of the lamp holder is ensured under the cooperation of the plug post and the fixing plate, and the installation is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0016] Figure 1 This is a schematic structural diagram of an infrared lamp tube without exhaust holes according to an embodiment of the utility model;

[0017] Figure 2 It is a partial cross-sectional structural schematic diagram of an embodiment of an infrared lamp tube without exhaust holes of the utility model;

[0018] Figure 3 It is a schematic diagram of a partial explosion structure of an embodiment of an infrared lamp tube without exhaust holes of the utility model;

[0019] Figure 4 This is a schematic diagram of the lamp holder structure of an infrared lamp tube without exhaust holes according to the utility model;

[0020] The main component symbols are described as follows:

[0021] Lamp tube 1; filament 2; lamp foot 3; through hole 4; lamp holder 5;

[0022] Inner sleeve 51; outer sleeve 52; stopper sleeve 53; slot 54; rubber sleeve 55; plug post 56; auxiliary hole 57; fixing groove 58; fixing plate 59. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 to Figure 4As shown, the utility model is an infrared lamp tube without exhaust holes, comprising a lamp tube 1 and a filament 2 installed inside the lamp tube 1, and a lamp foot 3 connected to the filament 2, through holes 4 are provided at both ends of the lamp tube 1, and lamp caps 5 are installed at both ends of the lamp tube 1;

[0025] The lamp holder 5 includes an inner sleeve 51 and an outer sleeve 52 which are integrally formed. The ends of the inner sleeve 51 and the outer sleeve 52 are integrally connected with a stop sleeve 53. The lamp pin 3 passes through the stop sleeve 53. A slot 54 is formed between the inner sleeve 51 and the outer sleeve 52. The width of the slot 54 is equal to the wall thickness of the lamp tube 1. The inner sleeve 51 is installed with a rubber sleeve 55. The rubber sleeve 55 is vertically installed with a plug 56. The plug 56 is soft rubber. The position and size of the plug 56 correspond to the through hole 4. The outer sleeve 52 is provided with an auxiliary hole 57 whose position and size correspond to the through hole 4. The plug 56 is provided with a fixing groove 58. The fixing groove 58 is matched with a fixing plate 59.

[0026] In this embodiment, when using an infrared lamp tube without exhaust holes, the lamp holder 5 at one end is first installed on the lamp tube 1, and then the sealing and exhausting integrated process is used to fill the lamp tube with protective gas and high-purity inert gas in turn. The sealing and exhausting integrated process eliminates the traditional exhaust holes used for exhaust operations, which is intuitively reflected as "no exhaust holes". The advantage is that the exhaust process is eliminated, the production time is greatly shortened, the production efficiency is improved, and the lamp tube has a beautiful appearance, is strong and durable;

[0027] The lamp holder 5 is installed by directly inserting the inner sleeve 51 into the lamp tube 1. During the insertion process, the plug post 56 is squeezed between the inner sleeve 51 and the lamp tube 1. When the end of the plug post 56 moves to the position of the through hole 4, due to the characteristics of the soft rubber, the plug post 56 slowly enters the through hole 4 until it is completely perpendicular to the inner sleeve 51. At this time, the plug post 56 also passes through the auxiliary hole 57, and then the fixing plate 59 is inserted into the plug post 56 until it is stuck in the fixing groove 58 to fix the position of the plug post 56, thereby completing the installation and fixation of the lamp holder 5. It is simple, convenient and fast.

[0028] Preferably, the through hole 4 passes through the two side walls of the lamp tube 1, and there are two through holes 4 on one side of one end of the lamp tube 1. Such a design enhances the fixing effect of the lamp holder 5 and the overall structural strength after installation. In fact, the position and number of the through holes 4 can also be considered according to specific circumstances.

[0029] It is preferred that the plug post 56 and the rubber sleeve 55 are integrally formed. Such a design will not cause the problem of fracture under pressure. In fact, the connection structure of the plug post 56 and the rubber sleeve 55 can also be considered according to specific circumstances.

[0030] Preferably, the plug post 56 and the through hole 4 have an interference fit. Such a design ensures a sealing effect. In fact, the size of the interference fit may also be considered according to specific circumstances.

[0031] Preferably, the inner sleeve 51, the outer sleeve 52 and the baffle sleeve 53 are all made of heat-insulating ceramic material. Such a design prevents heat from affecting the rubber sleeve 55. In fact, the material selection of the inner sleeve 51, the outer sleeve 52 and the baffle sleeve 53 can also be considered according to specific circumstances.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An infrared lamp tube without exhaust holes, comprising a lamp tube (1), a filament (2) installed inside the lamp tube (1), and a lamp foot (3) connected to the filament (2), characterized in that: Through holes (4) are provided at both ends of the lamp tube (1), and lamp caps (5) are installed at both ends of the lamp tube (1); The lamp holder (5) comprises an inner sleeve (51) and an outer sleeve (52) which are integrally formed. The ends of the inner sleeve (51) and the outer sleeve (52) are integrally connected with a stop sleeve (53). The lamp foot (3) passes through the stop sleeve (53). A slot (54) is formed between the inner sleeve (51) and the outer sleeve (52). The width of the slot (54) is equal to the wall thickness of the lamp tube (1). The inner sleeve (51) is installed with a rubber sleeve (55). The rubber sleeve (55) is vertically installed with a plug post (56). The plug post (56) is soft rubber. The position and size of the plug post (56) correspond to the through hole (4). The outer sleeve (52) is provided with an auxiliary hole (57) whose position and size correspond to the through hole (4). The plug post (56) is provided with a fixing groove (58). The fixing groove (58) is matched with a fixing plate (59).

2. The infrared lamp tube without vent holes according to claim 1, characterized in that: The through hole (4) passes through two side walls of the lamp tube (1), and two through holes (4) are provided on a side surface of one end of the lamp tube (1).

3. The infrared lamp tube without vent holes according to claim 2, characterized in that: The plug post (56) and the rubber sleeve (55) are integrally formed.

4. The infrared lamp tube without vent holes according to claim 3, characterized in that: The plug post (56) and the through hole (4) are interference fit.

5. The infrared lamp tube without vent holes according to claim 4, characterized in that: The inner sleeve (51), the outer sleeve (52) and the blocking sleeve (53) are all made of heat-insulating ceramic material.

Images