A long life crystal oscillator

Abstract

The present invention belongs to the technical field of crystal oscillators, and in particular, relates to a long-life crystal oscillator, comprising a substrate, a wafer is mounted on the substrate, a machine chamber is fixed at one end of the substrate away from the cover chamber, fixed pins are inserted and installed on both sides of the bottom of the substrate; two connecting pins, both sides of the connecting pins close to the fixed pins are provided with card holes, and a group of clamping components are installed on both sides of the machine chamber. The long-life crystal oscillator is achieved by dividing the entire pin into two parts, a connecting pin and a fixed pin, and making the connecting pin and the fixed pin in a card-connected detachable connection. The substrate is located inside and protected, and the connecting pin is located outside for wiring. If the connecting pin is cracked or broken, it is only necessary to replace the connecting pin, thereby extending the service life of the crystal oscillator, ensuring the stable use of the crystal oscillator, and reducing the cost of maintenance, which is beneficial to environmental protection and sustainable development.

Description

Technical Field

[0001] The invention relates to the technical field of crystal oscillators, and in particular to a crystal oscillator with a long service life. Background Art

[0002] In modern electronic devices, crystal oscillators are key components that provide stable clock signals. The stability of their performance and service life are directly related to the reliability and long-term operating costs of the entire system. Crystal oscillators generate high-precision oscillation frequencies through internal crystal resonators. This frequency is widely used in computers, communication equipment, consumer electronics, industrial control and other fields to maintain the system's time base and data synchronization.

[0003] The pins of the crystal oscillator are the bridge connecting the external circuit and the internal crystal resonator. The pins may be bent during use. Excessive bending or improper bending techniques can easily cause tiny cracks or even direct breaks inside the pins. Gradually enlarging cracks may cause poor contact between the pins and the sockets or solder joints, reducing the stability of the oscillation frequency. At the same time, once the pins are broken, they are usually replaced with a new crystal oscillator, which increases maintenance costs and is not conducive to environmental protection and sustainable development. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a long-life crystal oscillator to solve the technical problem that the current pins may be bent during use, and excessive bending or improper bending techniques can easily cause tiny cracks or even direct breakage inside the pins.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A long-life crystal oscillator comprises a substrate, a wafer is mounted on the substrate, a cover bin for shielding the wafer is fixed to one end of the substrate close to a boss, an organic bin is fixed to one end of the substrate away from the cover bin, fixing pins are inserted and installed on both sides of the bottom of the substrate, and the fixing pins are connected to the wafer at one end close to the wafer; Two connecting pins, two mounting holes for the connecting pins to pass through are provided on both sides of the bottom of the machine compartment, and clamping holes are provided on both sides of the connecting pins close to one end of the fixed pins, and a group of clamping components are installed on both sides of the inside of the machine compartment, and the two clamping components in the same group are placed opposite to each other and clamped with the clamping holes on the same side; Translation plates are fixed on both sides of the movable end of the clamping component, and the translation plate is slidably mounted with a guide rod through a sliding hole opened thereon. Two expansion components are installed on both sides of the guide rod, and the two expansion components on the same side are arranged opposite to each other and located between the two translation plates on the same side.

[0007] As an improved technical solution, a boss for mounting a chip is fixed on the top of the substrate, and a through hole for the fixing pin to pass through is opened at the position of the boss corresponding to the fixing pin, and a convex edge is integrally formed on the outward edge of the cover magazine near one end of the substrate.

[0008] As an improved technical solution, positioning slides connected to the card hole are provided on both sides of the connecting pin close to one end of the fixing pin, and positioning blocks passing through the positioning slides are installed on both sides of the mounting hole.

[0009] As an improved technical solution, an installation cavity is opened at one end of the connecting pin close to the fixed pin, a movable disk is vertically slidably installed inside the installation cavity, a blocking ring plate for blocking the movable disk is fixed at the upper end of the installation cavity, a coaxial pin column is installed at the center of the blocking ring plate away from one end of the installation cavity, and the pin column passes through the inner hole of the blocking ring plate, and a copper spring is installed inside the installation cavity.

[0010] As an improved technical solution, a spring block 1 is fixed at the center of the movable disk away from the pin column, a spring block 2 is fixed at the center of the installation cavity away from the pin column, and a copper spring is fixed between spring blocks 1 and 2.

[0011] As an improved technical solution, the front and rear end surfaces of the movable disk are fixed with limit sliders, and the front and rear wall surfaces of the two inner walls of the spring block are provided with limit sliding grooves for the limit sliders to slide.

[0012] As an improved technical solution, the clamping assembly includes a cylinder seat fixed inside the machine chamber, a circular sleeve is fixed in the groove on the top of the cylinder seat, a T-rod is slidably installed on the circular sleeve through a sliding hole opened at one end of the circular sleeve, a disc is fixed at the end of the T-rod away from the circular sleeve, a clamping block coaxial with the disc is fixed on the end face of the disc away from the T-rod, and a common spring is sleeved on the rod end of the T-rod and located between the opposite surfaces of the disc and the circular sleeve.

[0013] As an improved technical solution, the expansion assembly includes a T-block slidably installed inside the machine cabin, and triangular blocks are movably provided on both inclined sides of the T-block, and the two triangular blocks are respectively installed on the opposite surfaces of two translation plates on the same side, and the T-block is in sliding contact with the inclined surfaces of the triangular block.

[0014] As an improved technical solution, the expansion assembly further comprises a guide rail fixed to the bottom of the inner wall of the cabin, and a guide slider sliding on the guide rail is installed at the bottom of the T-block.

[0015] As an improved technical solution, a threaded sleeve is inserted into the middle of the T-block, and round holes for the threaded sleeve to pass through are opened on both sides of the front and back of the cabin, and a threaded rod is installed in the threaded hole of the threaded sleeve.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are: 1. The present invention rotates the knob on the threaded rod, and under the threaded transmission action of the threaded rod and the threaded hole on the threaded sleeve, the threaded rod is moved out from the inside of the threaded sleeve to extend the length of the handle. When in use, the threaded rod is moved out from the inside of the threaded sleeve, and when not in use, the threaded rod is screwed into the inside of the threaded sleeve for storage, which is convenient for aligning it for use and storage, and also reduces the space it occupies, avoiding it from occupying a large space when not in use and affecting other electronic components; 2. The present invention divides the entire pin into two parts, namely, a connecting pin and a fixed pin, and makes the connecting pin and the fixed pin in a detachable snap-on connection. The substrate is located inside and protected, and the connecting pin is located outside for wiring. If the connecting pin is cracked or broken, only the connecting pin needs to be replaced, thereby extending the service life of the crystal oscillator, ensuring the stable use of the crystal oscillator, reducing the maintenance cost, and being beneficial to environmental protection and sustainable development. 3. In the present invention, the connecting pin is fixed by the clamping connection between the clamping block and the clamping hole, and the clamping connection between the clamping hole and the clamping block is driven by the expansion component, which is convenient for quick installation and removal of the connecting pin. The limited sliding between the positioning block and the positioning slideway plays a role in positioning and guiding the connecting pin to enter the interior of the machine compartment. The connecting pin will not rotate when entering the interior of the machine compartment, ensuring that the connecting pin enters the interior of the machine compartment vertically, thereby facilitating the alignment and clamping connection between the clamping hole and the clamping block, and ensuring the stability of the clamping connection between the clamping hole and the clamping block; 4. In the present invention, when the connecting pin contacts the fixed pin, the pin column at the top contacts the bottom end of the fixed pin first. As the connecting pin moves upward, the pin column applies a reverse force to the movable disk to compress the copper spring. When the connecting pin is fixed, the pin column is pushed toward the fixed pin under the elastic action of the copper spring, so that the pin column and the fixed pin are in stable and sufficient contact, thereby ensuring the tightness of the connection between the connecting pin and the fixed pin and avoiding poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 The present invention is a schematic structural diagram of a long-life crystal oscillator in a separated state.

[0019] Figure 2 The present invention is a schematic diagram of the separation structure of a substrate and a housing of a long-life crystal oscillator.

[0020] Figure 3 The figure is a schematic diagram of the internal structure of a machine compartment of a long-life crystal oscillator according to the present invention.

[0021] Figure 4 The present invention is a partial structural schematic diagram of the connection pins of a long-life crystal oscillator.

[0022] Figure 5 The present invention is a partial cross-sectional structural schematic diagram of the connecting pins of a long-life crystal oscillator.

[0023] Figure 6 The present invention is a schematic structural diagram of an expansion component of a long-life crystal oscillator.

[0024] Figure 7 The present invention is a schematic structural diagram of a clamping assembly of a long-life crystal oscillator.

[0025] Description of reference numerals: 1. Base plate; 11. Cover; 12. Convex edge; 13. Boss; 14. Wafer; 15. Machine chamber; 2. Connecting pin; 21. Positioning slide; 22. Clamping hole; 23. Mounting cavity; 24. Pin column; 25. Blocking ring plate; 26. Movable disk; 27. Spring block 1; 28. Spring block 2; 29. ​​Copper spring; 210. Limiting slide groove; 211. Limiting slider; 3. Fixed pin; 4. Clamping assembly; 41. Cylinder seat; 42. Circular sleeve; 43. Ordinary spring; 44. Circular disk; 45. Clamping block; 46. T-bar; 5. Expansion assembly; 51. T-block; 52. Threaded sleeve; 53. Threaded rod; 54. Guide slider; 55. Triangular block; 56. Guide rail; 6. Translation plate; 7. Guide rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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.

[0028] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0029] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] like Figures 1 to 7 As shown together, this embodiment provides a long-life crystal oscillator, which includes a substrate 1, a wafer 14 is mounted on the substrate 1, a cover 11 for shielding the wafer 14 is fixed at one end of the substrate 1 close to the boss 13, an organic chamber 15 is fixed at one end of the substrate 1 away from the cover 11, fixing pins 3 are inserted and installed on both sides of the bottom of the substrate 1, and the end of the fixing pin 3 close to the wafer 14 is connected to the wafer 14, and a conductive glue is provided at the contact point between the wafer 14 and the fixing pin 3; Two connecting pins 2, two mounting holes for the connecting pins 2 to pass through are provided on both sides of the bottom of the machine chamber 15, and clamping holes 22 are provided on both sides of the connecting pins 2 near one end of the fixing pin 3. A group of clamping components 4 are installed on both sides of the machine chamber 15, and the two clamping components 4 in the same group are placed opposite to each other and clamped with the clamping holes 22 on the same side. The connecting pins 2 are fixed by the clamping connection between the clamping block 45 and the clamping hole 22, and the clamping connection between the clamping hole 22 and the clamping block 45 is driven by the expansion component 5, so as to facilitate the rapid installation and removal of the connecting pins 2; A translation plate 6 is fixed on both sides of the movable end of the clamping component 4, and a guide rod 7 is slidably installed on the translation plate 6 through a sliding hole opened thereon, and the guide rod 7 is fixed to the inside of the machine chamber 15 through a rod frame, and two expansion components 5 are installed on both sides of the inside of the guide rod 7, and the two expansion components 5 on the same side are arranged opposite to each other and are located between the two translation plates 6 on the same side, and the driving end of the expansion component 5 is located outside the machine chamber 15.

[0031] The entire pin is divided into two parts, a connecting pin 2 and a fixed pin 3, and the connecting pin 2 and the fixed pin 3 are in a snap-on detachable connection. The substrate 1 is located inside and protected, and the connecting pin 2 is located outside for wiring. If the connecting pin 2 is cracked or broken, only the connecting pin 2 needs to be replaced, thereby extending the service life of the crystal oscillator, ensuring the stable use of the crystal oscillator, and reducing the cost of maintenance, which is beneficial to environmental protection and sustainable development.

[0032] like Figure 1 to Figure 2 As shown together, in this embodiment, a boss 13 for mounting a chip 14 is fixed on the top of the substrate 1, and a through hole for the fixing pin 3 to pass through is opened at the position of the boss 13 corresponding to the fixing pin 3, and a convex edge 12 is integrally formed on the outward edge of the cover magazine 11 close to one end of the substrate 1.

[0033] like Figures 1 to 3 As shown together, in the present embodiment, positioning slides 21 connected to the card hole 22 are provided on both sides of the connecting pin 2 near one end of the fixing pin 3, and positioning blocks passing through the positioning slides 21 are installed on both sides of the inside of the mounting hole. The limiting sliding between the positioning block and the positioning slide 21 plays a role in positioning and guiding the connecting pin 2 to enter the interior of the machine chamber 15. The connecting pin 2 will not rotate when entering the interior of the machine chamber 15, thereby ensuring that the connecting pin 2 enters the interior of the machine chamber 15 vertically, which is beneficial to the alignment and card connection of the card hole 22 and the card block 45, and ensuring the stability of the card connection between the card hole 22 and the card block 45.

[0034] like Figures 4 to 5As shown together, in the present embodiment, an installation cavity 23 is opened at one end of the connecting pin 2 close to the fixed pin 3, and a movable disk 26 is vertically slidably installed inside the installation cavity 23, and a blocking ring plate 25 for blocking the movable disk 26 is fixed at the upper end inside the installation cavity 23, and a coaxial pin column 24 is installed at the center of the circle of the blocking ring plate 25 away from one end of the installation cavity 23, and the pin column 24 passes through the inner hole of the blocking ring plate 25, and a copper spring 29 is installed inside the installation cavity 23. When the connecting pin 2 contacts the fixed pin 3, the pin column 24 at its top contacts the bottom end of the fixed pin 3 first, and as the connecting pin 2 continues to move upward, the pin column 24 applies a reverse force to the movable disk 26 to compress the copper spring 29, and when the connecting pin 2 is fixed, under the elastic action of the copper spring 29, the pin column 24 is pushed toward the direction of the fixed pin 3, so that the pin column 24 and the fixed pin 3 are in stable and sufficient resistance contact, thereby ensuring the tightness of the connection between the connecting pin 2 and the fixed pin 3 and avoiding the occurrence of poor contact.

[0035] like Figure 5 As shown, in this embodiment, a spring block 27 is fixed at the center of the movable disk 26 away from the pin column 24, a spring block 28 is fixed at the center of the installation cavity 23 away from the pin column 24, and a copper spring 29 is fixed between the spring block 1 27 and the spring block 28. The pin column 24, the movable disk 26, the spring block 1 27 and the spring block 28 are all made of high-quality guide materials.

[0036] like Figure 5 As shown, in this embodiment, the front and rear end surfaces of the movable disk 26 are fixed with a limit slider 211, and the blocking ring plate 25 is pressed on the top of the limit slider 211, and the front and rear wall surfaces of the inner wall of the spring block 28 are provided with a limit slide groove 210 for the limit slider 211 to slide.

[0037] like Figure 7 As shown, in this embodiment, the clamping assembly 4 includes a cylinder seat 41 fixed inside the machine chamber 15, a circular sleeve 42 is fixed in the groove on the top of the cylinder seat 41, and the circular sleeve 42 is slidably installed with a T-rod 46 through a sliding hole opened at one end thereof, a disc 44 is fixed to the end of the T-rod 46 away from the circular sleeve 42, and the translation plate 6 is fixed on the disc 44, the disc 44 is made of insulating material, and a clamping block 45 coaxial with the disc 44 is fixed to the end face of the disc 44 away from the T-rod 46, and the clamping block 45 is clamped with the clamping hole 22, and the rod end of the T-rod 46 is located between the opposite surfaces of the disc 44 and the circular sleeve 42 and is sleeved with a common spring 43.

[0038] like Figure 6 to Figure 7As shown together, in this embodiment, the expansion assembly 5 includes a T-block 51 slidably installed inside the machine chamber 15, and triangular blocks 55 are movably provided on the two inclined sides of the T-block 51, and the two triangular blocks 55 are respectively installed on the opposite surfaces of the two translation plates 6 on the same side, and the inclined surfaces of the T-block 51 and the triangular blocks 55 are in sliding contact.

[0039] like Figure 6 As shown, in this embodiment, the expansion assembly 5 further includes a guide rail 56 fixed to the bottom of the inner wall of the cabin 15 , and a guide slider 54 sliding on the guide rail 56 is installed at the bottom of the T-block 51 .

[0040] like Figure 6 As shown, in the present embodiment, a threaded sleeve 52 is inserted and installed in the middle of the T-block 51, and round holes for the threaded sleeve 52 to pass through are opened on both sides of the front and back of the machine chamber 15, and a threaded rod 53 is threadedly installed in the threaded hole of the threaded sleeve 52, and a knob is installed at one end of the threaded rod 53 located outside the machine chamber 15. The knob on the threaded rod 53 is rotated, and the threaded rod 53 is moved out from the inside of the threaded sleeve 52 under the threaded transmission action of the threaded rod 53 and the threaded hole on the threaded sleeve 52 to extend the length of the handle. The threaded rod 53 is moved out from the inside of the threaded sleeve 52 when in use, and is screwed into the inside of the threaded sleeve 52 for storage when not in use, so as to facilitate its alignment for use and storage, and also reduce the space occupied by it, so as to avoid it occupying a large space and affecting other electronic components when not in use.

[0041] When in use, the connection process between the fixed pin 3 and the connecting pin 2 is as follows: First, the distance between the two translation plates 6 on the same side is enlarged by the expansion component 5, that is, the distance between the clamping blocks 45 on the two clamping components 4 on the same side is enlarged; The knob on the threaded rod 53 is rotated, and under the threaded transmission action of the threaded rod 53 and the threaded hole on the threaded sleeve 52, the threaded rod 53 is moved out from the inside of the threaded sleeve 52 to extend the length of the handle; The T-block 51 is pushed toward the interior of the machine chamber 15 by the threaded rod 53. When the T-block 51 and the triangular block 55 are in sliding contact, the T-block 51 continuously moves toward the interior of the machine chamber 15, which will expand the distance between the two translation plates 6 on the same side, and drive the disc 44 to move toward one side of the circular sleeve 42, and compress the common spring 43. The top end of the connecting pin 2 is passed through the mounting hole into the interior of the machine chamber 15, so that the top end thereof contacts the fixing pin 3. Then, the inward thrust of the T-shaped block 51 is released, and the disc 44 drives the clamping block 45 to reset under the elastic reset of the common spring 43, and the clamping block 45 enters the clamping hole 22 for clamping, thereby fixing the connecting pin 2 on the machine chamber 15. Similarly, the machine chamber 15 can also be disassembled. When the connecting pin 2 contacts the fixed pin 3, the pin column 24 at its top contacts the bottom end of the fixed pin 3 first. As the connecting pin 2 moves upward, the pin column 24 applies a reverse force to the movable disk 26 to compress the copper spring 29. When the connecting pin 2 is fixed, the elastic action of the copper spring 29 pushes the pin column 24 toward the fixed pin 3, so that the pin column 24 and the fixed pin 3 are in stable and sufficient contact.

[0042] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A long life crystal oscillator, characterized in that: The invention comprises a substrate (1), a chip (14) being mounted on the substrate (1), a cover chamber (11) being fixed at one end of the substrate (1) close to the boss (13) for shielding the chip (14), an organic chamber (15) being fixed at one end of the substrate (1) away from the cover chamber (11), fixing pins (3) being inserted and mounted on both sides of the bottom of the substrate (1), and an end of the fixing pin (3) close to the chip (14) being connected to the chip (14); Two connecting pins (2), two mounting holes for the connecting pins (2) to pass through are provided on both sides of the bottom of the machine chamber (15), and clamping holes (22) are provided on both sides of the connecting pins (2) near one end of the fixing pin (3), and a group of clamping components (4) are installed on both sides of the interior of the machine chamber (15), and two clamping components (4) in the same group are placed opposite to each other and clamped with the clamping holes (22) on the same side; A translation plate (6) is fixed on both sides of the movable end of the clamping assembly (4), and a guide rod (7) is slidably mounted on the translation plate (6) through a sliding hole opened thereon. Two expansion assemblies (5) are mounted on both sides of the guide rod (7), and the two expansion assemblies (5) on the same side are arranged opposite to each other and are located between the two translation plates (6) on the same side.

2. A long-life crystal oscillator according to claim 1, characterized in that: A boss (13) for mounting a chip (14) is fixed on the top of the substrate (1), and a through hole for the fixing pin (3) to pass through is provided at a position of the boss (13) corresponding to the fixing pin (3), and a convex edge (12) is integrally formed on the outward edge of the cover (11) close to one end of the substrate (1).

3. A long-life crystal oscillator according to claim 2, characterized in that: Positioning slideways (21) connected to the clamping hole (22) are provided on both sides of the connecting pin (2) near one end of the fixing pin (3), and positioning blocks passing through the positioning slideways (21) are installed on both sides of the interior of the mounting hole.

4. A long-life crystal oscillator according to claim 3, characterized in that: An installation cavity (23) is provided at one end of the connecting pin (2) close to the fixed pin (3), a movable disk (26) is vertically slidably installed inside the installation cavity (23), a blocking ring plate (25) for blocking the movable disk (26) is fixed at the upper end inside the installation cavity (23), a coaxial pin column (24) is installed at the center of a circle of one end of the blocking ring plate (25) away from the installation cavity (23), and the pin column (24) passes through the inner hole of the blocking ring plate (25), and a copper spring (29) is installed inside the installation cavity (23).

5. A long-life crystal oscillator according to claim 4, characterized in that: A spring block 1 (27) is fixed at the center of the circle of one end of the movable disk (26) away from the pin column (24), a spring block 2 (28) is fixed at the center of the circle of one end of the installation cavity (23) away from the pin column (24), and a copper spring (29) is fixed between the spring block 1 (27) and the spring block 2 (28).

6. A long-life crystal oscillator according to claim 5, characterized in that: The front and rear end surfaces of the movable plate (26) are both fixed with a limit slide block (211), and the front and rear wall surfaces of the inner wall of the second spring block (28) are both provided with a limit slide groove (210) for the limit slide block (211) to slide.

7. A long-life crystal oscillator according to claim 6, characterized in that: The clamping assembly (4) comprises a cartridge seat (41) fixed inside the machine chamber (15), a circular sleeve (42) being fixed in a groove at the top of the cartridge seat (41), a T-shaped rod (46) being slidably mounted on the circular sleeve (42) through a sliding hole opened at one end thereof, a circular disc (44) being fixed at one end of the T-shaped rod (46) away from the circular sleeve (42), a clamping block (45) coaxial with the circular disc (44) being fixed at one end of the circular disc (44) away from the T-shaped rod (46), and a common spring (43) being sleeved on the rod end of the T-shaped rod (46) and located between the opposite surfaces of the circular disc (44) and the circular sleeve (42).

8. A long-life crystal oscillator according to claim 7, characterized in that: The expansion assembly (5) comprises a T-shaped block (51) slidably mounted inside the machine cabin (15), triangular blocks (55) being movably arranged on two inclined surfaces of the T-shaped block (51), and the two triangular blocks (55) are respectively mounted on opposite surfaces of two translation plates (6) on the same side, and the inclined surfaces of the T-shaped block (51) and the triangular blocks (55) are in sliding contact.

9. A long-life crystal oscillator according to claim 8, characterized in that: The expansion assembly (5) further comprises a guide rail (56) fixed to the bottom of the inner wall of the cabin (15), and a guide slider (54) sliding on the guide rail (56) is installed at the bottom of the T-block (51).

10. A long-life crystal oscillator according to claim 9, characterized in that: A threaded sleeve (52) is inserted and installed in the middle of the T-shaped block (51), and circular holes for the threaded sleeve (52) to pass through are opened on both sides of the front and back of the machine cabin (15), and a threaded rod (53) is threadedly installed in the threaded hole of the threaded sleeve (52).

Images