Fixing device

Abstract

The utility model relates to a fixing device, which comprises a shell component, a fixing component and a fixing component, the suction cup is arranged on the outer bottom wall of the shell assembly, an adsorption cavity is formed in the suction cup, and an air passing hole communicated with the through hole is formed in the top of the adsorption cavity; at least part of the piston assembly is movably arranged at the through hole so as to open or close the through hole and / or the air passing hole; and the lifting handle assembly is used for lifting the fixing device and can drive the piston assembly to do telescopic movement relative to the through hole and / or the air passing hole. When the fixing device is placed on a bearing surface, the piston assembly closes the through hole and / or the air passing hole, and under the gravity of the shell assembly and the like, air in the suction cup adsorption cavity is extruded out, so that a vacuum space is formed between the suction cup and the bearing surface, and the device can be firmly adsorbed; when moving is needed, the piston assembly can be driven to move upwards to open the through hole and / or the air passing hole while the fixing device is lifted by operating the handle assembly, and therefore external air enters the adsorption cavity to easily achieve separation of the suction cup and the bearing face.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, and in particular to a fixing device. Background Technology

[0002] Currently, household appliances or storage containers are usually fixed in place by simply contacting the outer bottom wall with the load-bearing surface. This method of fixing often causes the device to tip over due to accidental collisions, affecting its use, especially for tall or lightweight devices, thus impacting the user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a fixing device to address the problem that household appliances or storage containers are usually simply fixed by directly contacting the outer bottom wall with the load-bearing surface during use, which often leads to the device tipping over due to accidental collisions and affecting its use.

[0004] A fixing device includes: a housing assembly having a through hole at its bottom; a suction cup disposed on the outer bottom wall of the housing assembly for adhering to the fixing device at the installation position, the suction cup having an adsorption cavity, the top of the adsorption cavity having an air vent communicating with the through hole; a piston assembly having at least a portion movably disposed at the through hole to open or close the through hole and / or the air vent; and a handle assembly connected to both the housing assembly and the piston assembly, the handle assembly being used to lift the fixing device and capable of causing the piston assembly to extend or retract relative to the through hole and / or the air vent.

[0005] This application provides a fixing device with a suction cup at the bottom of its housing assembly. The suction cup's adsorption chamber is connected to the outside through an air vent at its top and a through-hole in the housing assembly. A piston assembly and a handle assembly are also provided. The piston assembly can open or close the through-hole and / or air vent when operated by the handle assembly. When the fixing device is placed on a load-bearing surface, the piston assembly closes the through-hole and / or air vent. Under the weight of the housing assembly and other components, the suction cup is compressed downwards by the housing assembly, forcing air out of the adsorption chamber through the connection between the suction cup and the load-bearing surface. This creates a sealed vacuum space between the suction cup and the load-bearing surface, allowing the fixing device to be firmly adsorbed onto the surface and preventing collisions and tipping. When the fixing device needs to be moved, the user operates the handle assembly to lift the device, simultaneously moving the piston assembly upwards and opening the through-hole and / or air vent. This allows outside air to enter the suction cup's adsorption chamber through the through-hole and air vent, easily separating the suction cup from the load-bearing surface and greatly facilitating the movement and transport of the fixing device.

[0006] Furthermore, the through hole and the vent hole are arranged opposite to each other, and the piston assembly extends vertically into the vent hole through the through hole.

[0007] In one embodiment, the housing assembly has a mounting hole on its side wall, and the handle assembly is partially inserted into the mounting hole. The handle assembly is configured to move relative to the mounting hole in the height direction and has at least a first position and a second position. When the handle assembly is in the first position, it separates from the top wall of the mounting hole, and the piston assembly closes the through hole and / or the vent. When the handle assembly is in the second position, it abuts against the top wall of the mounting hole, and the piston assembly opens the through hole and / or the vent. By adopting the above structure, utilizing the cooperation between the handle assembly and the mounting hole, as the handle assembly moves from the first position to the second position, it will preferentially drive the piston assembly to rise relative to the housing assembly and the suction cup, causing the piston assembly to move away and open the through hole and / or the vent, thus eliminating the suction force of the suction cup. Until the handle assembly moves to the second position, the handle assembly abuts against the top wall of the mounting hole, providing support for the fixing device. At this time, the fixing device can be easily moved and transported.

[0008] In one embodiment, the housing assembly has mounting holes on opposite sides. The handle assembly includes a handle and a first connecting rod. The first connecting rod is horizontally positioned above the piston assembly. The middle portion of the first connecting rod is connected to the piston assembly. Both ends of the first connecting rod are connected to the ends of the handle via adjacent mounting holes. The first connecting rod is configured to drive the piston assembly to extend or retract relative to the through hole and / or the vent hole under the influence of the handle. Specifically, the first connecting rod can move vertically relative to the mounting hole under the influence of the handle. When the handle assembly is in a first position, the first connecting rod separates from the top wall of the mounting hole; when the handle assembly is in a second position, the first connecting rod abuts against the top wall of the mounting hole. By adopting the above structure, with the cooperation of the first connecting rod and the handle, while achieving a transmission connection between the handle assembly and the piston assembly, the upward supporting force of the handle assembly on the fixing device can be evenly distributed on both sides of the housing assembly, making the movement and handling of the fixing device smoother and easier.

[0009] In one embodiment, the piston assembly includes a sealing portion and a second connecting rod. The sealing portion is movably disposed at the through hole and / or the vent hole. The second connecting rod is disposed above the sealing portion along the height direction, and its two ends are connected to the sealing portion and the first connecting rod, respectively. Specifically, when the first connecting rod moves upward, it drives the sealing portion upward through the second connecting rod, opening the through hole and / or the vent hole, allowing the adsorption chamber to communicate with the outside. The second connecting rod enables the transmission connection between the first connecting rod and the sealing portion, which can be adapted to fixing devices with larger heights and helps to shorten the exposed handle length, making the fixing device's appearance structure more compact and streamlined.

[0010] In one embodiment, a positioning hole is formed at the end of the second connecting rod away from the sealing part, and the first connecting rod is adapted to be inserted into the positioning hole. When the length of the second connecting rod is long, by providing a positioning hole for adaptation and installation with the first connecting rod, it can be ensured that the second connecting rod can move in a preset direction under the drive of the first connecting rod, avoiding deviation that would affect the sealing connection between the sealing part and the through hole and / or the vent hole.

[0011] In one embodiment, the handle assembly further includes an elastic element, one end of which is connected to the housing assembly, and the other end of which is connected to the handle, the first connecting rod, or the piston assembly to give the piston assembly a downward tendency to move. Due to the elastic element, when the fixing device moves to a new position, the user releases the handle assembly, causing the upward pull to disappear. The elastic restoring force of the elastic element will pull the handle, the first connecting rod, or the piston assembly downward, thereby allowing the piston assembly to automatically and quickly seal the through hole and / or vent hole, ensuring the suction cup's adsorption function can be effectively performed.

[0012] In one embodiment, a snap-fit ​​is formed on the inner sidewall of the housing assembly, one end of the elastic element is connected to the first connecting rod, and the other end of the elastic element is connected to the snap-fit. By adopting the above structure, the installation of the elastic element becomes simpler and easier to operate.

[0013] In one embodiment, the mounting hole is an oblong hole that extends along the height direction, and the two ends of the first connecting rod are slidably disposed in adjacent mounting holes. By adopting the above structure, the first connecting rod will slide along the inner wall of the oblong hole, thereby limiting the movement direction of the first connecting rod and ensuring that the first connecting rod can move in a preset direction to drive the piston assembly to move rapidly.

[0014] In one embodiment, the two ends of the first connecting rod are rotatably connected to the two ends of the handle, respectively. Thus, when the fixing device is placed on a load-bearing surface, the handle can rotate downwards to the side of the housing assembly, reducing space occupancy.

[0015] In one embodiment, the housing assembly includes a container body and a partition assembly. The bottom wall of the container body has the through hole. The suction cup is disposed on the outer bottom wall of the container body. The partition assembly is disposed within the container body, dividing the inner cavity of the container body into an installation cavity and a receiving cavity. The installation cavity communicates with the through hole. The piston assembly is disposed in the installation cavity. By adopting the above structure, the piston assembly, located in the installation cavity, can be shielded by the partition assembly, thereby preventing the piston assembly from being exposed, improving the aesthetics of the device, and preventing the piston assembly from being damaged or displaced due to accidental collisions, which could lead to the piston assembly failing to effectively seal the through hole or air vent, causing the suction cup adsorption function to fail.

[0016] In one embodiment, the partition assembly includes two partitions, which are disposed opposite to each other and spaced apart in the container body. The two partitions are connected to the inner sidewall of the container body and cooperate to form the mounting cavity. The container body is provided with the mounting hole, which communicates with the mounting cavity.

[0017] In one embodiment, the handle assembly is partially located within the mounting cavity. Specifically, the first connecting rod is located within the mounting cavity, which provides protection for the first connecting rod and makes the fixing device more aesthetically pleasing.

[0018] In one embodiment, the top of the mounting cavity has an opening. This opening facilitates the installation of the piston assembly and the first connecting rod by the installer. Attached Figure Description

[0019] Figure 1 A perspective view of a fixing device according to one embodiment;

[0020] Figure 2 An exploded view of the fixing device according to one embodiment;

[0021] Figure 3 A first cross-sectional view of the fixing device according to one embodiment (with the handle assembly in the first position);

[0022] Figure 4 A second cross-sectional view of the fixing device according to one embodiment (with the handle assembly in the second position);

[0023] Figure 5 for Figure 4 Enlarged view of region A;

[0024] Figure 6 This is a third cross-sectional view of the fixing device according to one embodiment (when the handle assembly is in the first position).

[0025] The correspondence between the reference numerals and the component names is as follows:

[0026] 1. Housing assembly, 101. Through hole, 102. Mounting hole, 103. Mounting cavity, 104. Receiving cavity, 105. Opening, 11. Container body, 12. Partition assembly, 121. Partition plate, 13. Snap fastener;

[0027] 2 suction cups, 201 suction chamber, 202 air vent;

[0028] 3 piston assembly, 301 positioning hole, 31 sealing part, 32 second connecting rod;

[0029] 4. Handle assembly, 41. Handle, 42. First connecting rod, 43. Elastic element. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0032] The fixing device of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0033] like Figures 1 to 5 As shown, this embodiment discloses a fixing device, including: a housing assembly 1, the bottom of which is provided with a through hole 101; a suction cup 2, which is disposed on the outer bottom wall of the housing assembly 1 and is used to adhere to the fixing device at the installation position, the suction cup 2 is provided with an adsorption cavity 201, the top of which has an air vent 202 communicating with the through hole 101; a piston assembly 3, at least a portion of which is movably disposed at the through hole 101 to open or close the through hole 101 and / or the air vent 202; and a handle assembly 4, which is connected to the housing assembly 1 and the piston assembly 3 respectively, and is used to lift the fixing device and can drive the piston assembly 3 to extend and retract relative to the through hole 101 and / or the air vent 202.

[0034] This application provides a fixing device, wherein the bottom of the housing assembly 1 is provided with a suction cup 2, the suction chamber 201 of the suction cup 2 can be connected to the outside through the air hole 202 at its top and the through hole 101 of the housing assembly 1, and a piston assembly 3 and a handle assembly 4 are provided. The piston assembly 3 can open or close the through hole 101 and / or the air hole 202 under the operation of the handle assembly 4. Therefore, when the fixing device is placed on the load-bearing surface, the piston assembly 3 closes the through hole 101 and / or the vent hole 202. Under the weight of the components such as the housing assembly 1, the suction cup 2 is squeezed downward by the housing assembly 1, causing the air in the suction chamber 201 to be squeezed out through the connection between the suction cup 2 and the load-bearing surface. This creates a sealed vacuum space between the suction cup 2 and the load-bearing surface, allowing the fixing device to be firmly attached to the load-bearing surface and preventing it from being knocked over. When the fixing device needs to be moved, the user can operate the handle assembly 4 to lift the fixing device and move the piston assembly 3 upward, opening the through hole 101 and / or the vent hole 202. This allows external air to enter the suction chamber 201 of the suction cup 2 through the through hole 101 and the vent hole 202, easily separating the suction cup 2 from the load-bearing surface and greatly facilitating the user's movement and handling of the fixing device.

[0035] Furthermore, the through hole 101 and the vent hole 202 are arranged opposite to each other, and the piston assembly 3 extends vertically into the vent hole 202 through the through hole 101.

[0036] like Figures 2 to 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a mounting hole 102 is provided on the side wall of the housing assembly 1, and a handle assembly 4 is partially inserted into the mounting hole 102. The handle assembly 4 is configured to be movable relative to the mounting hole 102 in the height direction and has at least a first position and a second position. When the handle assembly 4 is in the first position, the handle assembly 4 is separated from the top wall of the mounting hole 102, and the piston assembly 3 closes the through hole 101 and / or the vent hole 202. When the handle assembly 4 is in the second position, the handle assembly 4 abuts against the top wall of the mounting hole 102, and the piston assembly 3 opens the through hole 101 and / or the vent hole 202. By adopting the above structure, and utilizing the cooperation between the handle assembly 4 and the mounting hole 102, during the process of the handle assembly 4 moving from the first position to the second position, the handle assembly 4 will preferentially drive the piston assembly 3 to rise relative to the housing assembly 1 and the suction cup 2, so that the piston assembly 3 leaves and opens the through hole 101 and / or the vent hole 202, causing the suction force of the suction cup 2 to disappear, until the handle assembly 4 moves to the second position, where the handle assembly 4 abuts against the top wall of the mounting hole 102 to provide support for the fixing device. At this time, the fixing device can be easily moved and transported.

[0037] like Figures 2 to 4As shown, in addition to the features of the above embodiments, this embodiment further specifies that: mounting holes 102 are respectively provided on opposite sides of the housing assembly 1; the handle assembly 4 includes a handle 41 and a first connecting rod 42; the first connecting rod 42 is arranged horizontally above the piston assembly 3; the middle part of the first connecting rod 42 is connected to the piston assembly 3; and the two ends of the first connecting rod 42 are respectively connected to the two ends of the handle 41 through adjacent mounting holes 102. The first connecting rod 42 is configured to drive the piston assembly 3 to extend and retract relative to the through hole 101 and / or the vent hole 202 under the action of the handle 41. Specifically, the first connecting rod 42 can move in the height direction relative to the mounting hole 102 under the action of the handle 41. When the handle assembly 4 is in the first position, the first connecting rod 42 is separated from the top wall of the mounting hole 102; when the handle assembly 4 is in the second position, the first connecting rod 42 abuts against the top wall of the mounting hole 102. By adopting the above structure, with the cooperation of the first connecting rod 42 and the handle 41, while realizing the transmission connection between the handle assembly 4 and the piston assembly 3, the upward support force of the handle assembly 4 on the fixing device can be evenly distributed on both sides of the housing assembly 1, making the movement and handling of the fixing device more stable and easy.

[0038] like Figure 2 , Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the piston assembly 3 includes a sealing part 31 and a second connecting rod 32. The sealing part 31 is movably disposed at the through hole 101 and / or the vent hole 202. The second connecting rod 32 is disposed above the sealing part 31 along the height direction, and its two ends are respectively connected to the sealing part 31 and the first connecting rod 42. Specifically, when the first connecting rod 42 moves upward, it will drive the sealing part 31 upward and open the through hole 101 and / or the vent hole 202 through the second connecting rod 32, so that the adsorption chamber 201 can be connected to the outside. The transmission connection between the first connecting rod 42 and the sealing part 31 is realized by the setting of the second connecting rod 32, which can be adapted to the fixing device with a large height and is conducive to shortening the length of the exposed handle 41, making the appearance structure of the fixing device more compact and smooth.

[0039] like Figure 2 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a positioning hole 301 is formed at the end of the second connecting rod 32 away from the sealing part 31, and the first connecting rod 42 is adapted to be inserted into the positioning hole 301. When the length of the second connecting rod 32 is long, by providing the positioning hole 301 for adaptation and installation with the first connecting rod 42, it can be ensured that the second connecting rod 32 can move in a preset direction under the drive of the first connecting rod 42, avoiding deviation that would affect the sealing connection between the sealing part 31 and the through hole 101 and / or the vent hole 202.

[0040] like Figures 2 to 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the handle assembly 4 also includes an elastic element 43, one end of which is connected to the housing assembly 1, and the other end of which is connected to the handle 41, the first connecting rod 42, or the piston assembly 3 so that the piston assembly 3 has a downward tendency to move. With the elastic element 43, when the fixing device moves to a new position, the user releases the handle assembly, causing the upward pulling force to disappear. The elastic restoring force of the elastic element 43 will pull the handle 41, the first connecting rod 42, or the piston assembly 3 downward, thereby enabling the piston assembly 3 to automatically and quickly seal the through hole 101 and / or the vent hole 202, ensuring that the suction function of the suction cup 2 can be effectively performed.

[0041] like Figure 3 , Figure 4 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a snap fastener 13 is formed on the inner sidewall of the housing assembly 1, one end of the elastic member 43 is connected to the first connecting rod 42, and the other end of the elastic member 43 is connected to the snap fastener 13. By adopting the above structure, the installation of the elastic member 43 can be made simpler and easier to operate.

[0042] like Figure 2 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting hole 102 is an oblong hole, the mounting hole 102 extends along the height direction, and the two ends of the first connecting rod 42 are respectively slidably disposed in adjacent mounting holes 102. By adopting the above structure, the first connecting rod 42 will slide along the inner wall of the oblong hole, thereby limiting the movement direction of the first connecting rod 42 and ensuring that the first connecting rod 42 can move in a preset direction to drive the piston assembly 3 to move quickly.

[0043] like Figure 2 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the two ends of the first connecting rod 42 are rotatably connected to the two ends of the handle 41 respectively. Therefore, when the fixing device is placed on a load-bearing surface, the handle 41 can rotate downwards to the side of the housing assembly 1, reducing space occupation.

[0044] like Figure 3 and Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the shell assembly 1 includes a container body 11 and a partition assembly 12. The bottom wall of the container body 11 is provided with a through hole 101. The suction cup 2 is disposed on the outer bottom wall of the container body 11. The partition assembly 12 is disposed in the container body 11, and the partition assembly 12 divides the inner cavity of the container body 11 to form an installation cavity 103 and a receiving cavity 104. The installation cavity 103 communicates with the through hole 101. The piston assembly 3 is disposed in the installation cavity 103. By adopting the above structure, the piston assembly 3 is located in the installation cavity 103 and can be shielded by the partition assembly 12, thereby preventing the piston assembly 3 from being exposed, improving the aesthetics of the device, and preventing the piston assembly 3 from being damaged or displaced by accidental collision, which would cause the piston assembly 3 to fail to effectively seal the through hole 101 or the vent hole 202, causing the suction cup 2 to fail to perform its adsorption function.

[0045] like Figure 1 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the partition assembly 12 includes two partition plates 121, the two partition plates 121 are arranged opposite to each other and spaced apart in the container body 11, the two partition plates 121 are connected to the inner sidewall of the container body 11 and cooperate to form an installation cavity 103, the container body 11 is provided with an installation hole 102, and the installation hole 102 communicates with the installation cavity 103.

[0046] like Figure 3 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the handle assembly 4 is located in the mounting cavity 103. Specifically, the first connecting rod 42 is located in the mounting cavity 103, which can provide protection for the first connecting rod 42 and make the appearance of the fixing device more concise and aesthetically pleasing.

[0047] like Figure 1 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the top of the mounting cavity 103 is provided with an opening 105. The opening 105 facilitates the installation of the piston assembly 3 and the first connecting rod 42 by the installer.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixing device, characterized in that, include: The housing assembly (1) has a through hole (101) at its bottom. The suction cup (2) is disposed on the outer bottom wall of the housing assembly (1). The suction cup (2) is used to adsorb onto the installation position of the fixing device. The suction cup (2) is provided with an adsorption cavity (201). The top of the adsorption cavity (201) has an air passage (202) that communicates with the through hole (101). A piston assembly (3), at least a portion of which is movably disposed at the through hole (101) to open or close the through hole (101) and / or the vent hole (202). A handle assembly (4) is connected to the housing assembly (1) and the piston assembly (3) respectively. The handle assembly (4) is used to lift the fixing device and can drive the piston assembly (3) to extend and retract relative to the through hole (101) and / or the vent hole (202).

2. The fixing device according to claim 1, characterized in that, The housing assembly (1) has a mounting hole (102) on its side wall. The handle assembly (4) is partially inserted into the mounting hole (102). The handle assembly (4) is configured to move relative to the mounting hole (102) in the height direction and has at least a first position and a second position. When the handle assembly (4) is in the first position, the handle assembly (4) is separated from the top wall of the mounting hole (102), and the piston assembly (3) closes the through hole (101) and / or the vent hole (202). When the handle assembly (4) is in the second position, the handle assembly (4) abuts against the top wall of the mounting hole (102), and the piston assembly (3) opens the through hole (101) and / or the vent hole (202).

3. The fixing device according to claim 2, characterized in that, The housing assembly (1) has mounting holes (102) on its opposite sides. The handle assembly (4) includes a handle (41) and a first connecting rod (42). The first connecting rod (42) is arranged horizontally above the piston assembly (3). The middle part of the first connecting rod (42) is connected to the piston assembly (3). The two ends of the first connecting rod (42) are respectively connected to the two ends of the handle (41) through adjacent mounting holes (102). The first connecting rod (42) is configured to drive the piston assembly (3) to extend and retract relative to the through hole (101) and / or the vent hole (202) under the action of the handle (41).

4. The fixing device according to claim 3, characterized in that, The piston assembly (3) includes a sealing part (31) and a second connecting rod (32). The sealing part (31) is movably disposed at the through hole (101) and / or the vent hole (202). The second connecting rod (32) is disposed above the sealing part (31) along the height direction. The two ends of the second connecting rod (32) are respectively connected to the sealing part (31) and the first connecting rod (42).

5. The fixing device according to claim 4, characterized in that, The second connecting rod (32) has a positioning hole (301) at one end away from the sealing part (31), and the first connecting rod (42) is adapted to be inserted into the positioning hole (301).

6. The fixing device according to claim 3, characterized in that, The handle assembly (4) further includes an elastic element (43), one end of which is connected to the housing assembly (1), and the other end of which is connected to the handle (41), the first connecting rod (42), or the piston assembly (3) to give the piston assembly (3) a downward tendency.

7. The fixing device according to claim 6, characterized in that, The inner wall of the housing assembly (1) is formed with a buckle (13), one end of the elastic element (43) is connected to the first connecting rod (42), and the other end of the elastic element (43) is connected to the buckle (13).

8. The fixing device according to claim 3, characterized in that, The mounting hole (102) is an oblong hole that extends along the height direction. Both ends of the first connecting rod (42) are slidably disposed in adjacent mounting holes (102); and / or The two ends of the first connecting rod (42) are rotatably connected to the two ends of the handle (41).

9. The fixing device according to any one of claims 2 to 8, characterized in that, The housing assembly (1) includes a container body (11) and a partition assembly (12). The bottom wall of the container body (11) is provided with the through hole (101). The suction cup (2) is disposed on the outer bottom wall of the container body (11). The partition assembly (12) is disposed in the container body (11). The partition assembly (12) divides the inner cavity of the container body (11) into an installation cavity (103) and a receiving cavity (104). The installation cavity (103) communicates with the through hole (101). The piston assembly (3) is disposed in the installation cavity (103).

10. The fixing device according to claim 9, characterized in that, The partition assembly (12) includes two partitions (121), which are arranged opposite to each other and spaced apart in the container body (11). The two partitions (121) are connected to the inner wall of the container body (11) and cooperate to form the mounting cavity (103). The container body (11) is provided with the mounting hole (102), which communicates with the mounting cavity (103); and / or The handle assembly (4) is partially located in the mounting cavity (103); and / or The top of the mounting cavity (103) is provided with an opening (105).

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