CN219046530U - Fixing device and communication system - Google Patents

Abstract

The utility model discloses a fixing device, which comprises a wall fixing mechanism and an equipment fixing mechanism, wherein the equipment fixing mechanism is used for clamping and fixing communication equipment to be installed; the wall fixing mechanism comprises a connecting seat, an adsorption seat and an adjusting component, wherein one side of the connecting seat is fixedly connected with the equipment fixing mechanism, the other side of the connecting seat is provided with a containing groove, the adsorption seat is movably connected in the containing groove along the depth direction of the containing groove through the adjusting component, a plurality of negative pressure suckers are arranged on the surface of one side of the adsorption seat, which faces the opening of the containing groove, and are used for adsorbing a connecting wall, and the adsorption seat drives the negative pressure suckers under the adjustment of the adjusting component, so that the adsorption seat is retracted into the containing groove or extends out of the containing groove. The fixing device can be conveniently detached and installed, the integrity and the attractiveness of the wall surface can be guaranteed, and the utility model also discloses a communication system.

Description

Fixing device and communication system

Technical Field

The present utility model relates to a fixing device, and more particularly, to a fixing device for a communication device and a communication system.

Background

The communication equipment, namely the network switch, refers to equipment for expanding a network, can provide more connection ports for a sub-network so as to connect more computers, and the traditional network switch is placed on a workbench surface, but the placement mode is found to occupy a large area when in use, and the work of workers is influenced under partial conditions, so that a suspension type fixing mode is developed later.

Fig. 1 is a schematic side view structure of a suspension fixing device for a communication device at present, in the prior art, when the communication device is suspended and fixed, a fixing frame body 3 is installed and fixed on a wall through a frame body fastening bolt 31, the communication device is placed on a supporting cylinder 4 and is installed and fixed on a clamping frame body 6 through a device fastening bolt 5, a clamping piece 61 on the clamping frame body 6 is clamped and arranged in a slot piece 32, a knob column sleeve 62 is clamped and arranged, and the column sleeve 62 is limited in a limiting hole piece 33 to realize suspension and fixation.

But the inventors found that: because the fixing frame body 3 of the device can only be fixed on the wall through the frame body fastening bolts 31, holes are required to be punched on the wall, and after the device is not detached, connecting holes can be left on the wall, so that the wall is incomplete and attractive, and the practicability of the device is reduced. Meanwhile, the communication equipment is installed and fixed on the clamping frame body 6 through the equipment fastening bolts 5, so that the communication equipment can be detached only by means of external tools (such as screwdrivers), and the communication equipment is time-consuming and labor-consuming.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art, and provides a fixing device which can be used for conveniently disassembling and installing equipment to be fixed, ensuring the integrity and the aesthetic property of a wall surface and a communication system.

The utility model provides a fixing device, which comprises a wall fixing mechanism and an equipment fixing mechanism, wherein the equipment fixing mechanism is used for clamping and fixing communication equipment to be installed; the wall fixing mechanism comprises a connecting seat, an adsorption seat and an adjusting component, wherein one side of the connecting seat is fixedly connected with the equipment fixing mechanism, the other side of the connecting seat is provided with a containing groove, the adsorption seat is movably connected in the containing groove along the depth direction of the containing groove through the adjusting component, a plurality of negative pressure suckers are arranged on the surface of one side of the adsorption seat, which faces the opening of the containing groove, and are used for adsorbing a connecting wall, and the adsorption seat drives the negative pressure suckers under the adjustment of the adjusting component, so that the adsorption seat is retracted into the containing groove or extends out of the containing groove.

Preferably, the connecting seat is provided with a first movable groove, the first movable groove is arranged on the side wall adjacent to the opening of the accommodating groove, the first movable groove is arranged along the depth direction of the accommodating groove, the adjusting assembly comprises a first screw rod, an adjusting nut, a movable block and a spring, and the first screw rod is arranged in the first movable groove; the movable block is sleeved outside the first screw rod through a unthreaded hole, is slidably arranged in the first movable groove and is connected with the adsorption seat; the first screw is further sleeved with a spring and an adjusting nut, the spring and the adjusting nut are respectively located on two sides of the movable block, the spring is used for pushing the movable block on one side close to the opening of the accommodating groove, and the adjusting nut is used for limiting the movable block from the other side.

Preferably, the two side edges of the surface of the accommodating groove in the connecting seat are provided with connecting parts extending outwards, and the connecting parts are provided with connecting holes for connecting the mounting wall surfaces.

Preferably, the inside of adsorption seat is for having the hollow structure in hollow region, this hollow region of negative pressure sucking disc intercommunication, wall fixed establishment still includes negative pressure and provides the subassembly, negative pressure provides the subassembly and includes the air pump, the air inlet of air pump and the hollow region intercommunication of adsorption seat for the adsorption seat provides the negative pressure, so that negative pressure sucking disc adsorbs the connection wall.

Preferably, the second movable groove communicated with the accommodating groove is formed in the two end faces of the connecting seat, the second movable groove is arranged along the depth direction of the accommodating groove, the negative pressure providing assembly further comprises a follow-up plate, a three-way valve and a connecting pipe, the follow-up plate penetrates through the second movable groove and is connected with the adsorption seat, the air pump is connected to the follow-up plate, an air inlet of the three-way valve is communicated with a hollow area of the adsorption seat through the connecting pipe, and two air outlets of the three-way valve are respectively communicated with the atmosphere and an air inlet of the air pump through the connecting pipe.

Preferably, the device fixing mechanism comprises a bottom plate, the bottom plate is fixedly connected with the connecting seat and used for supporting the communication device to be installed, the device fixing mechanism further comprises two clamping plates, the two clamping plates are respectively arranged on two opposite sides of the bottom plate, at least one clamping plate is movably connected to the bottom plate along the direction perpendicular to the clamping plate, so that the other clamping plate is close to or far away from the bottom plate, and the communication device to be installed is clamped or released.

Preferably, the third movable groove is formed in the bottom plate, the third movable groove is arranged along the direction perpendicular to the clamping plate, the equipment fixing mechanism further comprises a transmission assembly, the transmission assembly comprises a second screw rod, a transmission nut and a movable plate, the second screw rod is rotatably connected in the third movable groove, the transmission nut is sleeved on the second screw rod, one side of the movable plate is connected with the transmission nut, the other side of the movable plate is connected on the clamping plate, and under the rotary motion of the second screw rod, the transmission nut drives the movable plate to drive the clamping plate to axially move along the second screw rod.

Preferably, the movable plate is a plate, and the plate body covers the opening of the third movable groove.

Preferably, the two opposite surfaces of the clamping plates are provided with fixing grooves, a plurality of fixing columns are arranged in the fixing grooves and used for abutting against communication equipment to be installed, and rubber gaskets are arranged at the ends of the fixing columns.

The utility model also provides a communication system which comprises the communication equipment and the fixing device, wherein the communication equipment is fixed on a wall through the fixing device.

According to the fixing device disclosed by the utility model, the equipment fixing mechanism is connected with the communication equipment to be installed in a clamping and fixing mode, so that fasteners such as bolts are not needed to participate in fixing, an external tool is not needed, and the communication equipment body is more convenient to detach and install. The wall fixing mechanism is connected with the wall through the suction of the negative pressure suction disc, so that holes are not required to be drilled on the wall before installation, the preparation work is omitted, the wall is prevented from being damaged, the connecting holes cannot be left on the wall after the device is removed, and the integrity and the attractiveness of the wall are guaranteed.

Drawings

FIG. 1 is a schematic side view of a conventional suspension fixture for communication equipment;

FIG. 2 is a schematic view showing the structure of a fixing device in embodiment 1 of the present utility model;

FIG. 3 is a schematic view showing a first cross-sectional structure of a fixing device in embodiment 1 of the present utility model;

fig. 4 is an enlarged view of the structure at a in fig. 3;

FIG. 5 is a schematic view showing a second cross-sectional structure of the fixing device in embodiment 1 of the present utility model;

fig. 6 is an enlarged view of the structure at B in fig. 5;

fig. 7 is a schematic diagram of a structure in which the adsorption seat in the fixing device in embodiment 1 of the present utility model is retracted into the accommodating groove.

In the figure: 1. a wall fixing mechanism; 11. a connecting seat; 111. a receiving groove; 112. a first movable groove; 113. a connection part; 114. a connection hole; 115. a second movable groove; 12. an adsorption seat; 121. a negative pressure suction cup; 13. an adjustment assembly; 131. a first screw; 132. an adjusting nut; 133. a movable block; 134. a spring; 14. a negative pressure supply assembly; 141. an air pump; 142. a follower plate; 143. a three-way valve; 144. a connecting pipe; 2. a device fixing mechanism; 21. a bottom plate; 22. a clamping plate; 221. a fixing groove; 222. fixing the column; 223. a rubber gasket; 23. a third movable groove; 24. a second screw; 25. a drive nut; 26. a movable plate; 3. a fixing frame body; 31. a frame body fastening bolt; 32. a socket member; 33. a limiting hole piece; 4. a support cylinder; 5. a device fastening bolt; 6. a frame body is clamped; 61. a clamping piece; 62. a column sleeve body.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be noted that, the terms "upper," "lower," and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience and simplicity of description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Example 1

As shown in fig. 2 and fig. 5 to fig. 7, the fixing device provided in this embodiment is mainly used for fixing communication equipment, and includes a wall fixing mechanism 1 and an equipment fixing mechanism 2, the equipment fixing mechanism 2 is used for clamping and fixing the communication equipment to be installed, the wall fixing mechanism 1 includes a connecting seat 11, an adsorption seat 12 and an adjusting component 13, one side of the connecting seat 11 is fixedly connected with the equipment fixing mechanism 2, a containing groove 111 is provided on the other side, the adsorption seat 12 is movably connected in the containing groove 111 along the depth direction of the containing groove 111 through the adjusting component 13, a plurality of negative pressure suction cups 121 are provided on a surface of one side of the adsorption seat facing the opening of the containing groove 111, and are used for adsorbing and connecting the wall, and the adsorption seat 12 drives the negative pressure suction cups 121 under the adjustment of the adjusting component 13, so that the adsorption seat is retracted into the containing groove 111 or extends out of the containing groove 111.

In this embodiment, the device fixing mechanism 2 is connected to the communication device to be installed in a clamping and fixing manner, so that the fastening members such as bolts are not required to participate in fixing, and the communication device body is more convenient to detach and install without using external tools. The wall fixing mechanism 1 is connected with the wall through the suction disc 121 in an adsorption mode, so that holes are not required to be drilled on the wall before installation, preparation work is omitted, the wall is prevented from being damaged, connecting holes cannot be reserved on the wall after the device is detached, and the integrity and the attractiveness of the wall are guaranteed.

And because negative pressure sucking disc 121 can withdraw to the holding groove 111 inside, consequently when selecting other wall fixed modes, also can not lead to negative pressure sucking disc 121 to take place to interfere etc. with the wall, the use is more nimble, and application scope is wider. And because of this, in this embodiment, when the whole smooth and flat of wall, the negative pressure is effectual, can choose the way of negative pressure absorption to connect this device; when the wall surface is poor in condition and rugged, and the requirements on the aesthetic degree of the wall surface are not high, the negative pressure suction disc 121 can be received in the accommodating groove 111, and the device can be fixed by adopting the modes of adhesion, bolts and the like.

In this embodiment, the connecting seat 11 and the adsorption seat 12 are made of ABS plastic, which has better hardness and stability, and is not deformed due to the empty inside, so that the adsorption seat 12 can be used. Through holes are formed in positions, corresponding to the negative pressure suckers 121, of the suction base 12, and the negative pressure suckers 121 can be fixed in the through holes in a glue adhesion mode and the like to achieve connection. The negative pressure suction cup 121 is made of nitrile rubber.

In this embodiment, as shown in fig. 6, the connecting seat 11 is provided with a first movable groove 112, the first movable groove 112 is disposed on a side wall adjacent to the opening of the accommodating groove 111, and the first movable groove 112 is disposed along the depth direction of the accommodating groove 111. The first movable groove 112 penetrates from the outside to the inside of the accommodating groove 111, and in this embodiment, the first movable groove 112 is formed on two opposite side walls of the connecting seat 11.

Corresponding to the first movable groove 112, the two groups of adjusting assemblies 13 respectively comprise a first screw rod 131, an adjusting nut 132, a movable block 133 and a spring 134, wherein the first screw rod 131 is arranged in the first movable groove 112; the movable block 133 is sleeved outside the first screw 131 through a unthreaded hole, is slidably arranged in the first movable groove 112 and is connected with the adsorption seat 12; the first screw 131 is further sleeved with a spring 134 and an adjusting nut 132, the spring 134 and the adjusting nut 132 are respectively located at two sides of the movable block 133, the spring 134 is used for pushing the movable block 133 at one side close to the opening of the accommodating groove 111, and the adjusting nut 132 is used for limiting the movable block 133 from the other side.

When the position of the adsorption seat 12 needs to be adjusted, the adjusting nut 132 is twisted from the first movable groove 112, and at this time, the movable block 133 will act against the adjusting nut 132 due to the elastic action of the spring 134, so as to drive the adsorption seat 12 connected thereto to move to a desired position. This adjustment process is convenient and quick, again without the aid of external tools. When the negative pressure sucking disc 121 is needed to be connected with a wall, the adjusting nut 132 can be adjusted towards the opening of the accommodating groove 111, so that the negative pressure sucking disc 121 extends out of the accommodating groove 111, as shown in fig. 6; when other connection methods are adopted, the adjusting nut 132 is reversely twisted, so that the negative pressure sucking disc 121 can be retracted into the accommodating groove 111, as shown in fig. 7.

In this embodiment, as shown in fig. 3, the two side edges of the surface of the connecting seat 11 with the accommodating groove 111 are provided with outwardly extending connecting portions 113, so that the cross section of the connecting seat 11 is in a T-shaped structure, and the connecting portions 113 are provided with connecting holes 114 for connecting to the mounting wall surface such as a wall, a cabinet wall, etc. So that the fastening member such as a bolt may be inserted into the coupling hole 114 and coupled to the wall. The device of this embodiment provides two sets of alternative connection means and avoids interference between the two sets by adjusting the movement of the assembly 13.

In this embodiment, the suction seat 12 has a hollow structure with a hollow area, the suction cup 121 is connected to the hollow area, and a hole perpendicular to the wall surface can be provided on the suction cup 121, and the hole penetrates from the suction surface of the suction cup 121 to the hollow area of the suction seat 12, so that the negative pressure of the hollow area can be provided to the suction surface of the suction cup 121 through the hole. The wall fixing mechanism 1 further comprises a negative pressure providing assembly 14, the negative pressure providing assembly 14 comprises an air pump 141, and an air inlet of the air pump 141 is communicated with the hollow area of the adsorption seat 12 and is used for providing negative pressure for the adsorption seat 12, so that negative pressure is provided between the negative pressure sucking disc 121 and the wall, and the negative pressure sucking disc 121 is in adsorption connection with the wall. In this embodiment, the air pump 141 can be a miniature air pump with smaller body size, which is convenient for installation and connection and can meet the requirement of adsorption of the device.

In this embodiment, as shown in fig. 3 and 4, the two end surfaces of the connecting seat 11 are provided with the second movable groove 115 communicated to the accommodating groove 111, the second movable groove 115 is arranged along the depth direction of the accommodating groove 111, the negative pressure providing assembly 14 further comprises a follower plate 142, a three-way valve 143 and a connecting pipe 144, the follower plate 142 passes through the second movable groove 115 and is connected with the adsorption seat 12, the air pump 141 is connected on the follower plate 142, the air inlet of the three-way valve 143 is communicated with the hollow area of the adsorption seat 12 through the connecting pipe 144, and the two air outlets of the three-way valve 143 are respectively communicated with the atmosphere and the air inlet of the air pump 141 through the connecting pipe 144. When the device is required to be installed, the air inlet of the three-way valve 143 is communicated with the air inlet of the air pump 141, so that the air pump 141 can provide negative pressure for the adsorption seat 12 and the negative pressure sucking disc 121; when the device needs to be removed, the air inlet of the three-way valve 143 is communicated with the atmosphere, so that the adsorption seat 12 and the negative pressure sucker 121 are in a normal air pressure state, and negative pressure is eliminated.

Wherein, the follower plate 142 has an L-shaped structure, one end with a smaller cross section passes through the second movable groove 115 and is connected with the adsorption seat 12, and the air pump 141 and the three-way valve 143 are arranged on one side with a larger area.

In the present embodiment, the lengths of the second movable groove 115 and the first movable groove 112 are identical, and the thickness of the follower plate 142 in the arrangement direction of the second movable groove 115 is also identical to the thickness of the movable block 133. Since the follower plate 142 and the movable block 133 are both connected to the adsorption base 12, the stroke of the two is completely consistent, so that the two cannot be limited to each other in the moving process. In this embodiment, the second movable groove 115 is provided on the end surface of the connection seat 11, and the first movable groove 112 is provided on the side wall of the connection seat 11, and in other embodiments, the opening positions of the two may be changed as appropriate, as long as the movement direction of the adsorption seat 12, that is, the depth direction of the accommodating groove 111 is conformed.

In this embodiment, the device fixing mechanism 2 includes a base plate 21, and the base plate 21 fixes the connection base 11 as a bearing structure for holding the communication device to be installed. The device fixing mechanism 2 further includes two holding plates 22, where the two holding plates 22 are respectively disposed on opposite sides of the base plate 21, and at least one holding plate 22 is movably connected to the base plate 21 along a direction perpendicular to itself so as to be close to or far from the other holding plate 22, thereby holding or releasing the communication device to be installed.

In this embodiment, only one clamping plate 22 is movably provided, and the other clamping plate 22 is fixed to the bottom plate 21. Before installation, the movable clamping plate 22 is firstly far away from the fixed clamping plate 22, so that the communication equipment is conveniently placed in the device. After installation, the movable clamping plate 22 is close to the fixed clamping plate 22, so that the communication equipment is attached and clamped.

In this embodiment, as shown in fig. 3, a third movable slot 23 is formed on the bottom plate 21, and the third movable slot 23 is arranged along a direction perpendicular to the clamping plate 22. The device fixing mechanism 2 further comprises a transmission assembly, the transmission assembly comprises a second screw 24, a transmission nut 25 and a movable plate 26, the second screw 24 is rotatably connected in the third movable groove 23, the end part of the second screw is rotatably connected with the third movable groove 23 through a bearing, one end of the second screw penetrates out of the bottom plate 21 and is connected with a handle, and the rotation of the second screw 24 can be realized by rotating the handle.

The transmission nut 25 is sleeved on the second screw 24, one side of the movable plate 26 is connected with the transmission nut 25, and the other side is connected with the clamping plate 22. In this embodiment, one side of the movable plate 26, which is close to the fixed clamping plate 22, is connected to the transmission nut 25, and the other side is connected to the movable clamping plate 22. When the handle is turned, the second screw 24 rotates, and at this time, the driving nut 25 drives the movable plate 26 to drive the clamping plate 22 to move along the axial direction of the second screw 24.

In this embodiment, the movable plate 26 is a plate, and its body covers the opening of the third movable slot 23. The length of the movable plate 26 is identical to the length of the opening of the third movable groove 23 exposed on the surface of the bottom plate 21, so that complete coverage of the opening can be achieved, and dust, foreign matters, and the like are prevented from falling into the third movable groove 23.

In this embodiment, as shown in fig. 2, the opposite surfaces of the two clamping plates 22 are provided with fixing grooves 221, a plurality of fixing columns 222 are disposed in the fixing grooves 221 for abutting against the communication equipment to be installed, and rubber gaskets 223 are disposed at the ends of the fixing columns 222 to provide a buffering effect for the abutting. Because the contact area of the fixing post 222 is small, a heat dissipation channel can be formed between the communication device and the clamping plate 22, so that heat dissipation during the operation of the communication device is accelerated.

Before the device is installed, a proper installation mode is selected according to actual installation conditions:

if the wall surface is smooth, cleaning dust on the wall surface, adjusting the three-way valve 143 to enable the adsorption seat 12 to be communicated with the air pump 141, enabling the plurality of negative pressure sucking discs 121 to abut against the wall surface, starting the air pump 141, enabling the inside of the adsorption seat 12 and the plurality of negative pressure sucking discs 121 to be in a negative pressure state by the air pump 141, and enabling the plurality of negative pressure sucking discs 121 to be adsorbed on the wall surface to realize negative pressure adsorption fixation of the device.

If the wall surface is uneven, the two adjusting nuts 132 are reversely screwed until the two adjusting nuts 132 abut against the inner wall of the corresponding first movable groove 112, that is, the two adjusting nuts 132 stop screwing when the two adjusting nuts 132 cannot continue to reversely screw, at this time, the two movable blocks 133 drive the adsorption seat 12 and the plurality of negative pressure sucking discs 121 to move in the same direction under the reset force of the corresponding springs 134 until the adsorption seat 12 and the plurality of negative pressure sucking discs 121 are accommodated in the accommodating groove 111, and then the adsorption seat is fixed on the wall surface through bolts passing through the connecting holes 114.

Before the communication equipment is fixed, the handle is reversely screwed, the handle drives the second screw rod 24 to reversely rotate, in the process of reversely rotating the second screw rod 24, the movable clamping plate 22 moves on the second screw rod 24 in the direction away from the fixed clamping plate 22 until the handle can not be continuously reversely screwed, at the moment, the distance between the two clamping plates 22 is larger, and the communication equipment can be placed and fixed;

when the communication equipment is fixed, one end of the communication equipment is placed in the fixing groove 221 on the fixed clamping plate 22, the handle is screwed forward until the other end of the communication equipment is abutted with the fixing groove 221 on the movable clamping plate 22, namely, the screwing is stopped when the handle can not be screwed forward any more, and at the moment, the two clamping plates 22 are matched to clamp and position the communication equipment, so that the fixation is realized.

Example 2:

the embodiment discloses a communication system, including communication equipment, still include the fixing device in embodiment 1, communication equipment passes through fixing device to be fixed on the wall, can be convenient dismantle the installation operation, still can not destroy the integrality and the aesthetic property of wall simultaneously.

It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.

Claims (10)

1. A fixing device, characterized in that: the device comprises a wall fixing mechanism (1) and a device fixing mechanism (2), wherein the device fixing mechanism (2) is used for clamping and fixing communication equipment to be installed;

the wall fixing mechanism (1) comprises a connecting seat (11), an adsorption seat (12) and an adjusting component (13), one side of the connecting seat (11) is fixedly connected with the equipment fixing mechanism (2), the other side is provided with a containing groove (111),

the adsorption seat (12) is movably connected in the accommodating groove (111) along the depth direction of the accommodating groove (111) through an adjusting component (13), one side surface of the adsorption seat, which faces the opening of the accommodating groove (111), is provided with a plurality of negative pressure suckers (121) for adsorbing and connecting a wall,

the adsorption seat (12) drives the negative pressure sucker (121) under the adjustment of the adjusting component (13) so that the negative pressure sucker retreats into the accommodating groove (111) or protrudes out of the accommodating groove (111).

2. The fixture of claim 1, wherein: a first movable groove (112) is formed in the connecting seat (11), the first movable groove (112) is arranged on the side wall adjacent to the opening of the accommodating groove (111), the first movable groove (112) is arranged along the depth direction of the accommodating groove (111),

the adjusting component (13) comprises a first screw (131), an adjusting nut (132), a movable block (133) and a spring (134),

the first screw (131) is arranged in the first movable groove (112); the movable block (133) is sleeved outside the first screw (131) through a unthreaded hole, is slidably arranged in the first movable groove (112), and is connected with the adsorption seat (12);

the first screw rod (131) is further sleeved with a spring (134) and an adjusting nut (132), the spring (134) and the adjusting nut (132) are respectively located on two sides of the movable block (133), the spring (134) is used for pushing the movable block (133) on one side close to the opening of the accommodating groove (111), and the adjusting nut (132) is used for limiting the movable block (133) on the other side.

3. The fixture of claim 1 or 2, wherein: the connecting seat (11) is provided with a containing groove (111), two side edges of the surface are provided with connecting parts (113) extending outwards, and the connecting parts (113) are provided with connecting holes (114) for connecting the mounting wall surface.

4. The fixture of claim 1, wherein: the inside of the adsorption seat (12) is an empty structure with a hollow area, the negative pressure sucker (121) is communicated with the hollow area,

the wall fixing mechanism (1) further comprises a negative pressure providing assembly (14), the negative pressure providing assembly (14) comprises an air pump (141), and an air inlet of the air pump (141) is communicated with a hollow area of the adsorption seat (12) and is used for providing negative pressure for the adsorption seat (12) so that the negative pressure sucker (121) is in adsorption connection with a wall.

5. The fixture of claim 4, wherein: second movable grooves (115) communicated with the accommodating groove (111) are formed on the two end faces of the connecting seat (11), the second movable grooves (115) are arranged along the depth direction of the accommodating groove (111),

the negative pressure supply assembly (14) further comprises a follow-up plate (142), a three-way valve (143) and a connecting pipe (144), the follow-up plate (142) passes through the second movable groove (115) and is connected with the adsorption seat (12), the air pump (141) is connected to the follow-up plate (142),

an air inlet of the three-way valve (143) is communicated with a hollow area of the adsorption seat (12) through a connecting pipe (144), and two air outlets of the three-way valve (143) are respectively communicated with air and an air inlet of the air pump (141) through the connecting pipe (144).

6. The fixture of claim 1, wherein: the equipment fixing mechanism (2) comprises a bottom plate (21), the bottom plate (21) is fixedly connected with the connecting seat (11) and is used for supporting communication equipment to be installed,

the equipment fixing mechanism (2) further comprises two clamping plates (22), wherein the two clamping plates (22) are respectively arranged on two opposite sides of the bottom plate (21), at least one clamping plate (22) is movably connected to the bottom plate (21) along the direction perpendicular to the clamping plates, so that the clamping plates are close to or far away from the other clamping plate (22), and the communication equipment to be installed is clamped or released.

7. The fixture of claim 6, wherein: a third movable groove (23) is formed on the bottom plate (21), the third movable groove (23) is arranged along the direction vertical to the clamping plate (22),

the equipment fixing mechanism (2) further comprises a transmission assembly, the transmission assembly comprises a second screw rod (24), a transmission nut (25) and a movable plate (26), the second screw rod (24) is rotatably connected in a third movable groove (23), the transmission nut (25) is sleeved on the second screw rod (24), one side of the movable plate (26) is connected with the transmission nut (25), the other side is connected on the clamping plate (22),

under the rotary motion of the second screw rod (24), the transmission nut (25) drives the movable plate (26) to drive the clamping plate (22) to move along the axial direction of the second screw rod (24).

8. The fixture of claim 7, wherein: the movable plate (26) is a plate, and the plate body covers the opening of the third movable groove (23).

9. The fixture of claim 6, wherein: the opposite surfaces of the two clamping plates (22) are respectively provided with a fixing groove (221),

a plurality of fixing columns (222) are arranged in the fixing grooves (221) and used for abutting against communication equipment to be installed, and rubber gaskets (223) are arranged at the end parts of the fixing columns (222).

10. A communication system comprising a communication device, characterized in that: further comprising a fixing device according to any one of claims 1 to 9,

the communication equipment is fixed on the wall through the fixing device.

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