JP2019502075A - Shock absorber and washing machine with weighing function - Google Patents

Abstract

A shock absorber and a washing machine having a weighing function, wherein the shock absorber is mounted in a suspension rod (1), a first housing (2) having an accommodation space, and a first housing (2). The first housing (2) includes a bracket (21) at the upper end, an opening (22) at the lower end, and a second housing (4) having an accommodation space. ) And a weighing mechanism (5) mounted in the second housing (4), the second housing (4) is slidable in the opening (22) at the lower end of the first housing (2) The suspension rod (1) extends through the bracket (21) into the first housing (2), passes through the pressure buffering mechanism (3), and enters the second housing (4). Connected to the weighing mechanism (5). By adding the measuring spring (51) on the premise of the conventional shock absorber, the influence on the displacement and weight of the vibration damping spring caused by the damping of the vibration damping spring can be avoided. In addition, by adding the measuring spring (51) to expand the measurement range, the measurement accuracy and range by the measurement sensor are improved. The present invention has characteristics of a good vibration damping effect, accurate weighing, a compact structure, and a long service life. [Selection] Figure 1

Description

  The present invention relates to the field of washing machines, and more particularly, to a shock absorber, and more particularly, to a shock absorber having a weighing function and a washing machine having the shock absorber.

Most of the conventional fully automatic washing machines realize a weighing function by rotating a washing tub filled with clothes by a motor. There are the following methods for realizing this measurement.
1. The first torque of the motor at this time is measured by controlling the motor to reach the first predetermined rotation speed and to rotate at a constant speed at the first predetermined rotation speed. Subsequently, the motor is controlled to accelerate from the first predetermined rotation speed to the second predetermined rotation speed, and the motor is increased from the first predetermined rotation speed to the second predetermined rotation speed. Measure the rising torque. Finally, the motor is controlled to rotate at a constant speed at a second predetermined rotation speed, and the second torque of the motor at this time is measured. Then, the weight of the clothing in the washing tub is calculated from the torque change value.
2. After the motor reaches the first predetermined rotational speed, the motor is controlled so that it suddenly fails. And the weight of the clothing in a washing tub is computed by detecting the number of rotations of the motor from a power failure to stationary. Also, the weight of the clothes in the washing tub is calculated by controlling the motor to suddenly fail after the motor reaches the first predetermined rotational speed and detecting the back electromotive force generated from the motor after the power failure. May be.

  Regardless of which method is used to measure the weight of the garment, the weight of the garment is measured by the motor. These weighing methods are often affected by conditions such as the motor type, transmission belt tension, and the frictional force of the washing tank system. Too many. A common situation is that a small amount of clothing in the washing tub is weighed as a large amount of clothing, so washing water is wasted, and conversely, a large amount of garment in the washing tub is weighed as a small amount of clothing. As a result, there is a shortage of water for washing, and clothes cannot be washed cleanly. Such a metering method can only be used as a general reference, and the amount of water cannot be judged. At present, environmental protection has been proposed, so it is necessary not only to save water consumption but also to opt for an optimal combination of clothing, detergent and water usage while avoiding detergent usage. However, it is difficult to satisfy the user's request with the above-described weighing method.

  Patent document 1 is related with the field of a washing machine, and is disclosing about the washing machine provided with the suspension containing a housing | casing and a washing tank. The washing machine further includes a suspension, and the suspension includes a suspension leg, a suspension rod, a spring cover, a spring, a spring seat, a metering sensor, and a sensor seat. The suspension is fixedly connected to the housing via a suspension leg and fixedly connected to the cleaning tank via a spring cover. The suspension rod is suspended and attached to a suspension leg. The spring cover, the spring, the spring seat, the measurement sensor, and the sensor seat are all fitted to the suspension rod. The spring is suspended and mounted between a spring cover and a spring seat. The weighing sensor is mounted between the spring seat and the sensor seat, and the sensor seat and the suspension rod are relatively fixed.

  Although accurate weighing is possible with the above structure, the following drawbacks exist. That is, since the weighing sensor is mounted on the suspension, the assembly of the washing machine member is slightly complicated, and wiring is not easy. As a result, there is a potential safety risk. Suspensions are mainly used for damping vibrations, but the entire washing tank vibrates greatly during the operation process, so the pressure change for the weighing sensor mounted between the spring seat and sensor seat is large, shortening the service life. End up.

  In addition, since the conventional shock absorber has a certain level of damping performance, the gravity and the vibration damping spring often do not have a linear relationship. In addition, the spring of the suspension rod often comes into close contact with the water supply state, resulting in a lack of measurement range, which affects the weighing of the washing machine.

  Patent Document 2 discloses a clothing weight detection device for a washing machine including a weighing device provided in a washing machine, a weighing circuit connected to the weighing device, and a method of using the same. The measuring circuit includes a microprocessor, a varistor in series with each other and connected to the microprocessor, and a voltage dividing protection resistor, and performs an operation using a change in the resistance value of the varistor. Since the weighing device is located above the upper cover plate in the housing, it is easy to place clothes. The weighing device can be a weighing device such as an electronic scale.

  This structure is equivalent to a conventional electronic scale with a built-in washing machine housing. In this case, although the weight of the garment can be measured, it is very troublesome for the user because the garment must be placed on the weighing device before being washed and weighed and then put into the washing machine for washing. In addition, the apparatus cannot measure the amount of water in the washing machine.

  In addition, some manufacturers implement a weighing function by attaching a strain gauge to the bottom leg of the washing machine. However, the peripheral circuit mounted on the bottom leg structure is not easily connected and difficult to wire, and there is a potential safety risk. In addition, since many users are accustomed to placing objects on the casing of the washing machine, weighing is inaccurate. Alternatively, the user must move an object every time, which is inconvenient for use.

  In view of these, the present invention is proposed.

Chinese Patent Application No. 2013203340304.3 Specification Chinese Patent Application No. 2012101767876.3

  The present invention should solve the problem of the prior art, provide a shock absorber having an excellent vibration damping effect, accurate weighing, a compact structure, and a weighing function with a long service life. Technical issue.

  Another object of the present invention is to provide a washing machine including the shock absorber.

  In order to solve the above technical problem, the basic idea of the technical scheme adopted in the present invention will be described below.

  A shock absorber having a weighing function, including a suspension rod, a first housing having an accommodation space, and a pressure buffering mechanism mounted in the first housing, and the first housing is provided with a bracket at the upper end. And a second housing having an opening at the lower end and a receiving space, and a weighing mechanism mounted in the second housing, wherein the second housing is slidably open at the lower end of the first housing. The suspension rod extends through the bracket into the first housing, passes through the pressure buffering mechanism, and is connected to the measuring mechanism in the second housing.

  Furthermore, the measuring mechanism includes a measuring spring, an electromagnetic coil, and a magnetic core. The measuring spring is covered with the suspension rod, the upper end is supported and connected to the inner wall of the second housing, and the lower end is the suspension rod. The magnetic core is provided below the base end of the suspension rod so as to move relative to the second housing, and the electromagnetic coil is provided outside the magnetic core. At the same time, it is fixed in the second housing via a coil holder.

  Preferably, the magnetic core is connected to the proximal end of the suspension rod or is elastically supported below the proximal end of the suspension rod. When the second housing slides on the suspension rod, the magnetic core receives an external force and moves relative to the electromagnetic coil. Then, the change of the force applied to the 1st housing | casing from the outer tub of a washing machine is reflected because the inductance of an electromagnetic coil changes.

  Further, the measuring mechanism further includes a magnetic core holder, the magnetic core is attached to the magnetic core holder, and an adjustment spring is provided between the magnetic core holder and the proximal end of the suspension rod. The adjusting spring is supported between the magnetic core holder and the proximal end of the suspension rod, or connects the magnetic core holder and the proximal end of the suspension rod. When the compression spring is released, the adjustment spring becomes a connection member between the proximal end of the suspension rod and the magnetic core holder.

  Further, a spring holder is provided between the measuring spring and the base end of the suspension rod, and the spring holder is supported on the base end of the suspension rod. By combining the spring holder and the magnetic core holder, these relative A guide portion for guiding the sliding is formed.

  Further, the spring holder has a cylindrical structure with an open lower end, and a support member that supports the measuring spring is provided at the upper end, and the support member is supported by the base end of the suspension rod, preferably the support member And a support pad is provided between the base end of the suspension rod, and the magnetic core holder has a cylindrical structure with an open upper end, and the upper end opening of the magnetic core holder is fitted into and contacted with the lower end opening of the spring holder. The guide portion is configured by sliding in a moving manner, an accommodation space is formed inside the guide portion, and an adjustment spring is provided in the accommodation space.

  Further, the magnetic core holder has a cylindrical structure whose diameter changes in two stages, and the upper stage is combined with the spring holder to constitute a guide part, and the lower stage constitutes a magnetic core mounting part, preferably, A support spring is provided between the upper magnetic core holder and the coil holder. More preferably, the elastic coefficient of the support spring is smaller than the elastic coefficient of the adjustment spring.

  Preferably, the magnetic core is provided outside the magnetic core mounting portion. An engaging claw is provided at the lower end of the magnetic core mounting portion, and the magnetic core is positioned and mounted by combining the engaging claw and the upper magnetic core holder.

  Further, the pressure buffering mechanism includes a vibration damping spring and a spring support base, the vibration damping spring is supported between the bracket and the spring support base, and the spring support base is supported by the second housing, preferably The elastic coefficient of the vibration damping spring is smaller than the elastic coefficient of the metering spring.

  Further, the spring support base includes at least a vibration damping spring receiver, an oil retaining felt, and a slide cup. The lower end of the vibration damping spring is supported above the vibration damping spring receiver, and the oil retaining felt and the slide cup are supported by the vibration damping spring receiver. Below the second housing and above the second housing.

  Preferably, the slide cup has an annular shape and is covered with the suspension rod. The diameter of the slide cup corresponds to the inner diameter of the first housing.

  In addition to the damping force of the suspension rod formed by the elastic force of the vibration damping spring, there are other damping forces in the first housing. For example, a damping force formed by friction between the slide cup and the inner wall of the first housing and a damping force formed by compressed air caused by sliding of the slide cup inside the first housing are included. The metering output varies depending on the position of the magnetic core, and the position of the magnetic core is determined by the displacement of the metering spring. Therefore, by balancing the force received, the force of the metering spring is made equal to the resultant force of damping of the suspension rod by the vibration damping spring and others. According to this, the change in the measurement output measured by the measurement spring is not affected by the attenuation of the other suspension rod, and the measurement becomes more accurate.

  Furthermore, the space between the first housing and the second housing is sealed, and a sealing connection member is provided on the lower end of the first housing and the outside of the second housing. A connecting portion connected to one housing, and a sealing portion for sealing each of the first housing and the second housing, and preferably the sealing portion seals the first housing in the axial direction; Is sealed in the radial direction.

  Further, the connecting portion and the sealing portion constitute a bowl-like structure penetrating in the axial direction. The connecting portion has a housing, and the sealing portion has a bottom, and the connecting portion is engaged with the outer peripheral wall of the first housing. Preferably, an inward engagement claw is provided at the opening end of the connection portion, and an engagement projection that engages with the engagement claw is provided on the outer peripheral wall of the first housing. A first seal ring is provided between the sealing portion and the end face of the lower end opening of the first housing, and a second seal ring is provided between the inner wall of the sealing portion and the outer peripheral wall of the second housing. Is provided.

  The washing machine including the shock absorber according to the present invention avoids the influence on the displacement and weight of the vibration damping spring caused by the damping of the vibration damping spring by adding a measuring spring on the premise of the conventional shock absorber. In addition, by adding a measuring spring to expand the measuring range, the accuracy and range of measurement by the measuring sensor is improved.

  By using the above technical scheme, the present invention has the following beneficial effects as compared with the prior art.

  The present invention adds a weighing function by providing a weighing mechanism in the shock absorber, and has a characteristic that weighing accuracy is high and error is small. In addition, it is possible to accurately determine the weight of clothing, water supply amount, drainage amount, moisture content of clothing, etc. before washing, and adds an automatic and smart function of a washing machine. The shock absorber of the present invention realizes accurate weighing by measuring the resultant force of the vibration damping spring and other damping using a measuring spring without affecting the vibration damping performance. Moreover, the measurement range is expanded by combining the measuring spring and the vibration damping spring, and the vibration damping effect is improved. In addition, by fitting two housings together, the measuring mechanism is provided in the other independent housing of the shock absorber, and is firmly combined with the housing in which the vibration damping spring exists. Therefore, the structure becomes compact and the service life is extended.

FIG. 1 is a view showing a structure of a shock absorber according to the present invention. FIG. 2 is a view showing the structure of the shock absorber according to the present invention in another state. FIG. 3 is a view showing a structure in another state of the shock absorber of the present invention. FIG. 4 is a view showing a structure in another state of the shock absorber of the present invention. FIG. 5 is a view showing another structure of the shock absorber in the present invention. FIG. 6 is an enlarged view of a portion A1 in FIG. FIG. 7 is a graph showing the weighing process by the weighing mechanism of the shock absorber according to the present invention.

  Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the drawings.

  As shown in FIG. 1, a shock absorber having a weighing function according to the present invention includes a suspension rod 1, a first housing 2 having an accommodating space, and a pressure buffer mechanism 3 mounted in the first housing 2. Including. The first housing 2 is provided with a bracket 21 at the upper end and has an opening 22 at the lower end. The shock absorber further includes a second housing 4 having an accommodation space and a weighing mechanism 5 mounted in the second housing. The second housing 4 is slidably provided in the opening 22 at the lower end of the first housing 2 and is installed to slide relative to the first housing 2. The suspension rod 1 extends through the bracket 21 into the first housing 2, passes through the pressure buffer mechanism 3, and is connected to the measuring mechanism 5 in the second housing 4. Both the first housing 2 and the second housing 4 have a sleeve structure, and an opening 22 at the lower end of the first housing 2 is provided outside the second housing 4.

  Furthermore, the measuring mechanism 5 includes a measuring spring 51, an electromagnetic coil 52, and a magnetic core 53. The measuring spring 51 is covered with the suspension rod 1, and the upper end is supported and connected to the inner wall of the second housing 4. The lower end is supported and connected to the base end 10 of the suspension rod. The magnetic core 53 is provided below the base end 10 of the suspension rod, and is installed to move relative to the second housing 4. The electromagnetic coil 52 is provided outside the magnetic core 53 and is fixed inside the second housing 4 via a coil holder 54. Preferably, the magnetic core 53 is connected to the proximal end 10 of the suspension rod or is elastically supported below the proximal end 10 of the suspension rod.

  When the second housing 4 slides on the suspension rod 1, the magnetic core 53 receives an external force and moves relative to the electromagnetic coil 52. Then, the change of the force given to the 1st housing | casing 2 from the outer tub of a washing machine is reflected because the inductance of the electromagnetic coil 52 changes.

  Further, a spring holder 57 is provided between the measuring spring 51 and the base end 10 of the suspension rod. The spring holder 57 is supported on the base end 10 of the suspension rod.

  Example 1

  As shown in FIGS. 1 to 6, the measuring mechanism 5 described in the present embodiment further includes a magnetic core holder 55. The magnetic core 53 is attached to the magnetic core holder 55, and an adjustment spring 56 is provided between the magnetic core holder 55 and the base end 10 of the suspension rod. The adjustment spring 56 connects the magnetic core holder 55 and the base end 10 of the suspension rod. When the compression amount is released, the adjustment spring 56 becomes a connecting member between the base end 10 of the suspension rod and the magnetic core holder 55, and both the magnetic core holder 55 and the suspension rod 1 are moved upward with respect to the second housing 4. And exercise. Furthermore, the spring holder 57 and the magnetic core holder 55 are combined to form a guide portion that guides the relative sliding thereof.

  Example 2

  As shown in FIGS. 1-6, the spring holder 57 described in the present embodiment has a cylindrical structure with an open lower end, and a support member 571 for supporting the measuring spring 51 is provided at the upper end (see FIG. 6). . The support member 571 is supported by the proximal end 10 of the suspension rod. Preferably, the support pad 11 is provided between the support member 571 and the proximal end 10 of the suspension rod. The magnetic core holder 55 has a cylindrical structure with an upper end opened. The opening at the upper end of the magnetic core holder 55 is fitted into the opening at the lower end of the spring holder 57, and the guide portion is configured by sliding relative to each other. An accommodation space is formed inside the guide portion, and an adjustment spring 56 is provided in the accommodation space.

  Example 3

  As shown in FIG. 6, the magnetic core holder 55 described in the present embodiment has a cylindrical structure whose diameter changes in two stages, and the upper magnetic core holder 551 is combined with the spring holder 57 to constitute a guide portion. In addition, the lower magnetic core holder 552 constitutes a magnetic core mounting portion. Preferably, the outer diameter of the upper magnetic core holder 551 is larger than the outer diameter of the lower magnetic core holder 552. Preferably, the magnetic core 53 is covered outside the magnetic core mounting portion. An engaging claw 553 is provided at the lower end of the magnetic core mounting portion, and the engaging claw 553 and the upper magnetic core holder 551 cooperate to position and mount the magnetic core 53.

  Example 4

  As shown in FIG. 5, as a difference from the first embodiment, the adjustment spring 56 described in the present embodiment is provided so as to be supported between the magnetic core holder 55 and the base end 10 of the suspension rod. Play. A support spring 58 is further provided between the lower part of the upper magnetic core holder 551 and the coil holder 54. The support spring 58 is provided outside the lower magnetic core holder 552 and the magnetic core 53. More preferably, the elastic coefficient of the support spring 58 is smaller than the elastic coefficient of the adjustment spring 56. Even while the compression amount of the adjustment spring 56 is released, the support spring 58 remains compressed by the upper magnetic core holder 551 and the coil holder 54. After the adjustment spring 56 recovers, the compression amount of the support spring 58 begins to be released, and at this time, the magnetic core holder 55 moves upward.

  Example 5

  As shown in FIG. 1, the pressure buffering mechanism 3 described in the present embodiment includes a vibration damping spring 31 and a spring support base 32. The vibration damping spring 31 is supported between the bracket 21 and the spring support base 32, and the spring support base 32 is supported by the second housing 4. Preferably, the elastic coefficient of the vibration damping spring 31 is smaller than the elastic coefficient of the measuring spring 51. When the first housing 2 is slid under force, the vibration damping spring 31 is first compressed and then the measuring spring 51 is compressed, thereby realizing the purpose of assisting vibration damping.

  Further, the spring support base 32 includes at least a vibration damping spring receiver 321, an oil retaining felt 322, and a slide cup 323. The lower end of the vibration damping spring 31 is supported above the vibration damping spring receiver 321, and the oil retaining felt 322 and the slide cup 323 are sequentially provided below the vibration damping spring receiver 321 and above the second housing 4. . Further, a support pad 324 is provided below the slide cup 323.

  The slide cup 323 preferably has an annular shape and is covered with the suspension rod 1. The diameter of the slide cup 323 corresponds to the inner diameter of the first housing 2.

  In addition to the damping force of the suspension rod formed by the elastic force of the vibration damping spring 31, other damping force is also present inside the first housing 2. For example, a damping force formed by friction between the slide cup 323 and the inner wall of the first housing 2 and a damping force formed by compressed air due to sliding of the slide cup 323 inside the first housing 2 are included. . The measurement output changes depending on the position of the magnetic core 53, and the position of the magnetic core 53 is determined by the displacement of the measurement spring 51. Therefore, by balancing the force to be received, the force of the measuring spring 51 is made equal to the resultant force of damping of the suspension rod by the vibration damping spring 31 and others. According to this, the change in the measurement output measured by the measurement spring 51 is not affected by the attenuation of the other suspension rod, and the measurement becomes more accurate.

  Example 6

  As shown in FIGS. 2 to 6, the second housing 4 described in the present embodiment is operatively sealed and connected to the first housing 2 in the opening 22 at the lower end of the first housing 2. . A sealed connection member 6 is provided at the lower end of the first housing 2 and the outside of the second housing 4. The sealed connection member 6 includes a connection portion 61 connected to the first housing 2 and a sealing portion 62 that seals the first housing 2 and the second housing 4. Preferably, the sealing portion 62 seals the first housing 2 in the axial direction and seals the second housing 4 in the radial direction.

  Further, the connecting part 61 and the sealing part 62 constitute a bowl-like structure penetrating in the axial direction. The connecting portion 61 has a housing, and the sealing portion 62 has a bottom, and the connecting portion 61 is engaged with the outer peripheral wall of the first housing 2. Preferably, an inward engagement claw 611 is provided at the opening end of the connection portion 61, and an engagement projection 11 that engages with the engagement claw 622 is provided on the outer peripheral wall of the first housing 2. A first seal ring 621 is provided between the sealing portion 62 and the end face of the opening 22 at the lower end of the first housing 2, and between the inner wall of the sealing portion 62 and the outer peripheral wall of the second housing 4. Is provided with a second seal ring 622 (see FIG. 6).

  Example 7

  A washing machine including the shock absorber according to the above embodiment of the present invention includes a housing, an outer tub provided in the housing, and other members. Between the outer tub and the housing, a shock absorber having the measuring function according to the present invention is provided. Since a specific connection method between the shock absorber, the housing, and the outer tub is a conventional technique, it will not be described in detail here. In the present invention, a measuring spring 51 (see FIG. 1) is added on the premise of a conventional shock absorber, thereby avoiding an influence on the displacement and weight of the vibration damping spring 31 caused by the damping of the vibration damping spring 31. Moreover, the measurement accuracy and range of the measurement sensor are improved by adding a measurement spring to widen the measurement range.

  The washing machine described in this example has an empty weight of 50.5KG, a maximum load of 171KG when full, a coefficient of elasticity of the vibration damping spring of 5.444N / mm, and a maximum compression amount of 63mm. The load on the washing machine is (63 * 5.444 / 9.8) * 4 = 140 KG. The elastic coefficient of the measuring spring is 59 N / mm. FIG. 7 shows a case where parameters in various states in the shock absorber shown in the following table are combined.

A: In the free state, the length of the magnetic core 53 in the electromagnetic coil 52 is L (see FIG. 1), and the inductance frequency of the corresponding electromagnetic coil is 37 KHz.
B: When the empty tank is suspended, the compression amount of the measuring spring 51 is 50.5 * 9.8 / 4/59 = 2.1 mm, the displacement of the spring holder 57 Δξ = 2.1 mm, the magnetic core holder 55 and the magnetism The displacement of the core 53 is 0 (see FIG. 2). Since the adjustment spring 56 remains in a compressed state and supports the magnetic core holder 55, no movement occurs between the magnetic core holder 55 and the magnetic core 53. At this time, the metering output frequency remains at 37 KHz.
C: The vibration damping spring is in close contact. At this time, the vibration damping spring 31 is completely compressed, and the measuring spring 51 assists vibration damping. The compression amount of the measuring spring 51 is 140 * 9.8 / 4/59 = 5.8 mm. The adjustment spring 56 is completely released from the compression amount to recover the free state, and the suspension rod 1 slides downward with respect to the second housing 4. The magnetic core holder 55 receives an acting force from the adjustment spring 56 or the support spring 58 and moves upward. The displacement between the magnetic core holder 55 and the magnetic core 53 is Δδ1 = 5.8−2.1 = 3.7 mm (see FIG. 3), and the measurement output frequency at this time is 40.74 KHz.
D: In the maximum load state, the compression amount of the measuring spring 51 is 171 * 9.8 / 4/59 = 7.2 mm, and the displacement of the magnetic core holder 55 and the magnetic core 53 is Δδ2 = 7.2-2.1 = 5.1 mm (see FIG. 4). At this time, the measurement output frequency is 42.1 KHz.

  The metering output frequency varies depending on the position of the magnetic core 53, and the position of the magnetic core 53 is determined by the displacement of the metering spring 51. Therefore, by balancing the force to be received, the force of the measuring spring 51 is made equal to the resultant force of damping of the suspension rod by the vibration damping spring 31 and others. According to this, the change in the output frequency from the measuring spring 51 is not affected by the attenuation of the other suspension rod, and the measurement becomes more accurate.

  The implementation methods of the above embodiments can be further combined or replaced. Also, the examples are merely preferred embodiments of the invention and are not intended to limit the concept and scope of the invention. Various modifications and improvements that those skilled in the art implement on the technical solution of the present invention within the scope of the design philosophy of the present invention are all within the scope of protection of the present invention.

Claims (10)

The first housing includes a suspension rod, a first housing having a receiving space, and a pressure buffering mechanism mounted in the first housing. The first housing has a weighing function having a bracket at the upper end and an opening at the lower end. In shock absorber,
Furthermore, a second housing having an accommodation space and a weighing mechanism mounted in the second housing, the second housing is slidably provided in the opening at the lower end of the first housing, and the suspension rod is A shock absorber, wherein the shock absorber extends through the bracket into the first housing and passes through the pressure buffering mechanism and is connected to the measuring mechanism in the second housing.   The measuring mechanism includes a measuring spring, an electromagnetic coil, and a magnetic core. The measuring spring is covered with a suspension rod, and the upper end is supported and connected to the inner wall of the second casing, and the lower end is a base of the suspension rod. Supported and connected to the end, the magnetic core is provided below the proximal end of the suspension rod so as to move relative to the second housing, the electromagnetic coil is provided outside the magnetic core, The shock absorber having a weighing function according to claim 1, wherein the shock absorber is fixed in the second housing via a coil holder.   3. The measuring mechanism according to claim 2, further comprising a magnetic core holder, wherein the magnetic core is attached to the magnetic core holder, and an adjustment spring is provided between the magnetic core holder and the base end of the suspension rod. Shock absorber with the weighing function.   A spring holder is provided between the measuring spring and the base end of the suspension rod. The spring holder is supported by the base end of the suspension rod. By combining the spring holder and the magnetic core holder, the relative sliding of them is achieved. 4. A shock absorber with a weighing function according to claim 3, wherein a guide portion for guiding the shock absorber is formed.   The spring holder has a cylindrical structure with an open lower end, and a support member that supports the measuring spring is provided at the upper end. The support member is supported by the base end of the suspension rod, and preferably the support member and the suspension member are suspended. A support pad is provided between the base ends of the rods, and the magnetic core holder has a cylindrical structure with an open upper end, and the upper end opening of the magnetic core holder is fitted and contacted with the lower end opening of the spring holder. 5. The weighing function according to claim 4, wherein a guide portion is configured by sliding, an accommodation space is formed inside the guide portion, and an adjustment spring is provided in the accommodation space. Shock absorber provided.   The magnetic core holder has a cylindrical structure whose diameter changes in two stages. The upper stage is combined with a spring holder to constitute a guide part, and the lower stage constitutes a magnetic core mounting part. 6. The measuring function according to claim 5, wherein a supporting spring is provided between the magnetic core holder and the coil holder, and more preferably, the elastic coefficient of the supporting spring is smaller than the elastic coefficient of the adjusting spring. shock absorber.   The pressure buffering mechanism includes a vibration damping spring and a spring support base, the vibration damping spring is supported between the bracket and the spring support base, and the spring support base is supported by the second housing. The shock absorber having a measuring function according to claim 2, wherein the elastic coefficient of the vibration damping spring is smaller than the elastic coefficient of the measuring spring.   The spring support base includes at least a vibration damping spring receiver, an oil-impregnated felt, and a slide cup. The lower end of the vibration damping spring is supported above the vibration damping spring receiver, and the oil-impregnated felt and the slide cup are below the vibration damping spring receiver. The shock absorber according to claim 7, wherein the shock absorber is provided in order above the second housing.   The first casing and the second casing are hermetically sealed, and a sealing connection member is provided on the lower end of the first casing and the outside of the second casing. A connecting portion connected to the body, and a sealing portion that seals the first housing and the second housing, respectively. Preferably, the sealing portion seals the first housing in the axial direction, and the second housing has a diameter. The shock absorber having a weighing function according to claim 1, wherein the shock absorber is sealed in a direction.   A washing machine comprising a shock absorber having the weighing function according to claim 1.