CN111998878B

CN111998878B - Instrument protector

Info

Publication number: CN111998878B
Application number: CN202010694654.4A
Authority: CN
Inventors: 李熙; 陈誉绅; 杨婷; 孔淑梅; 高翔; 李宁; 游水芳; 黎家烽
Original assignee: SGIS Songshan Co Ltd
Current assignee: SGIS Songshan Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-12-07
Anticipated expiration: 2040-07-17
Also published as: CN111998878A

Abstract

The invention relates to an instrument protection device, comprising: the instrument comprises a shell and a telescopic unit, wherein the shell is provided with an opening and a cavity and is used for accommodating an instrument; the telescopic units are positioned at two sides of the opening of the shell and comprise telescopic pipes connected with the side wall of the shell, telescopic rods positioned in the telescopic pipes and clamping strips positioned in the telescopic rods; the top of card strip is provided with the follow the buckle that the telescopic link transversely stretches out, flexible intraductal wall be provided with buckle assorted draw-in groove, but the buckle joint is in the draw-in groove to the shell can't break away from easily under the artifical condition of not intervening, has realized the better guard action to the instrument, and the structure is ingenious reasonable.

Description

Instrument protector

Technical Field

The invention relates to the technical field of protection of measuring instruments, in particular to an instrument protection device.

Background

According to the requirements of production process, some instruments for monitoring and measuring are installed in indoor environment, and some instruments are directly installed in outdoor environment. The instruments installed in the open environment are easily affected by external rainfall, snowfall, sun exposure and other factors, so that the appearance is corroded, rusted or water enters the interior, the service life of the instruments is shortened, and the measurement accuracy of the instruments is reduced. Therefore, it is necessary to provide a meter protector outside the meter to protect the meter.

However, the external protection performance of the conventional instrument protection device is insufficient, and the instrument cannot be comprehensively protected, so that the instrument is damaged, and the service life of the instrument is shortened.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the instrument protection device to protect the instrument in all directions and avoid the damage of the instrument, which results in the reduction of the service life of the instrument.

The technical purpose of the invention is realized by the following technical scheme: an instrument guard comprising: the instrument comprises a shell and a telescopic unit, wherein the shell is provided with an opening and a cavity and is used for accommodating an instrument; the telescopic units are positioned at two sides of the opening of the shell and comprise telescopic pipes connected with the side wall of the shell, telescopic rods positioned in the telescopic pipes and clamping strips positioned in the telescopic rods; the top of card strip is provided with the follow the buckle that the telescopic link transversely stretches out, flexible intraductal wall be provided with buckle assorted draw-in groove, but the buckle joint is in the draw-in groove.

In one embodiment, the telescopic unit further includes a cover, a spring seat and a spring, the cover is disposed at the top end of the telescopic tube, the spring seat is disposed at the top end of the telescopic rod, and two ends of the spring are respectively abutted to the cover and the spring seat.

In one embodiment, after the center of the spring seat extends to the bottom to a preset position, the spring seat extends to the telescopic rod to form a supporting seat, a second spring is abutted between the supporting seat and the buckle, and the second spring is used for abutting the buckle in the clamping groove.

In one embodiment, the telescopic link is a hollow type, a placing groove is axially arranged on the inner wall of the telescopic link, a rotating shaft is arranged at the bottom end of the placing groove, a notch is formed in the top end of the placing groove in a transverse conduction mode, the clamping strip is placed in the placing groove, the bottom end of the clamping strip is hinged to the rotating shaft, and the buckle of the clamping strip can penetrate through the notch and be clamped in the clamping groove.

In one embodiment, the telescopic unit further comprises a transmission part, a connecting rod and a transmission rod which are positioned in the telescopic rod; the transmission rod is arranged on the axis of the telescopic rod and fixedly connected with the transmission part, and the connecting rod is respectively hinged with the transmission part and the clamping strip.

In one embodiment, an adjusting groove is formed in one end of the telescopic rod, an adjusting piece is connected to the bottom end of the transmission rod, and the adjusting piece radially extends out of the adjusting groove and moves in the adjusting groove along the axial direction of the telescopic rod.

In one embodiment, the instrument protection device further comprises a rotating unit, the rotating unit is connected to the bottom end of the telescopic rod, and the rotating unit comprises a first rotating seat and a second rotating seat; the first rotating seat is provided with a first hinge hole, the second rotating seat is provided with a second hinge hole, and the first hinge hole is hinged with the second hinge hole through a connecting piece; the connecting piece with the one end that the second hinge hole is connected is provided with the stopper, second hinge hole inside wall is provided with the spacing groove along the axial, the stopper is in the spacing groove (interior edge the axial displacement of connecting piece).

In one embodiment, the rotating unit further comprises an end cover, a connecting spring and a positioning piece; the connecting spring is located in the connecting piece, two ends of the connecting spring are respectively fixedly connected with the end cover and the positioning piece, the end cover is located on the outer end face of the second hinge hole, and the positioning piece is located on the outer end face of the first hinge hole and connected with the connecting piece.

In one embodiment, the positioning element is provided with a positioning protrusion, a plurality of positioning holes are uniformly formed in the surface, in contact with the positioning element, of the first rotating seat along the circumference of the first hinge hole, and the positioning protrusion can be embedded into the positioning holes.

In one embodiment, the rotating unit is connected with a mounting ring, the mounting ring comprises an arc-shaped plate and a bolt, two ends of the arc-shaped plate are fixedly connected through the bolt, and the diameter of the arc-shaped plate is adapted to the diameter of the instrument mounting pipe.

In conclusion, the invention has the following beneficial effects:

the instrument is placed in the cavity of the shell, the telescopic unit is located on two sides of the opening of the shell, the top end of the clamping strip of the telescopic unit is provided with a buckle transversely extending from the telescopic rod, the inner wall of the telescopic pipe of the telescopic unit is provided with a clamping groove matched with the buckle, and the buckle can be clamped in the clamping groove so that the shell cannot be easily separated under the condition of manual non-intervention, the better protection effect on the instrument is achieved, and the structure is ingenious and reasonable.

And secondly, after the center of the spring seat extends to a preset position towards the bottom, the spring seat extends to form a supporting seat towards the telescopic rod, and a second spring is abutted between the supporting seat and the buckle and used for abutting the buckle in the clamping groove so as to strengthen the stability of the buckle in clamping with the clamping groove.

The utility model discloses a device for measuring the axial displacement of a motor, including telescopic link, drive rod, connecting rod, regulating groove, regulating part, instrument, and instrument, and instrument, etc. are connected and instrument, etc. are provided.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the telescoping unit of the present invention;

FIG. 3 is a cross-sectional view of the telescoping unit of the present invention;

FIG. 4 is a cross-sectional view of the buckle of the present invention;

FIG. 5 is a cross-sectional view of the telescoping unit of the present invention;

FIG. 6 is a schematic view of the telescopic tube and the telescopic rod of the present invention;

FIG. 7 is a schematic view of the construction of the telescopic unit of the present invention;

FIG. 8 is a schematic view showing the construction of a rotating unit according to the present invention;

FIG. 9 is an exploded view of the rotary unit of the present invention;

fig. 10 is a schematic view showing the structure of the instrument guard of the present invention in operation.

In the figure: 100. a housing; 200. a telescopic unit; 300. a rotating unit; 201. a telescopic pipe; 202. a telescopic rod; 203. clamping the strip; 204. a cover body; 205. a spring seat; 206. a first spring; 207. a second spring; 208. a transmission member; 209. a connecting rod; 210. a transmission rod; 211. an adjustment member; 201a, a card slot; 202a, a placing groove; 203a and a buckle; 205a, a supporting seat; 202b, a rotating shaft; 202c, notches; 202d, an adjusting groove; 301. a first rotating base; 302. a second rotating base; 303. a connecting member; 3011. a first end; 3021. a second end; 301a, a first hinge hole; 301b, positioning holes; 301c, a first connection end; 302a, a second hinge hole; 302a-1, a limiting groove; 302b, a second connection end; 306a, a positioning projection; 400. installing a ring; 401. an arc-shaped plate; 402. and (4) bolts.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.

The instrument is a general term for measuring temperature, air pressure, electric quantity, blood pressure, flow and other instruments, generally speaking, is a meter with a timing appearance, can directly display numerical values through scales, and in a broad sense, the instrument also has functions of automatic control, danger early warning, data processing and the like, and for example, an automatic analysis instrument, an electric power regulation instrument and the like used in a factory belong to the instruments. For example, a pressure gauge refers to a gauge that measures and indicates a pressure higher than ambient pressure by using an elastic element as a sensing element, and is widely used and is almost spread in all fields of industrial processes and scientific research. The method is widely available in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance plants and shops and the like. Especially in the industrial process control and technical measurement process, the mechanical pressure gauge is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge.

The existing instruments directly installed in the open environment are influenced by factors such as external rainfall, snowfall, sun exposure and the like, so that the appearance is corroded and rusted, water enters the interior, the service life of the instruments is shortened, and the measurement accuracy of the instruments is reduced. Therefore, an instrument protection device needs to be arranged outside the instrument to protect the instrument, but the existing instrument protection device has the following defects: firstly, the external protection performance of the existing instrument is insufficient, the instrument cannot be protected in an all-around manner, and the instrument can be damaged, so that the service life of the instrument is shortened; secondly, the existing instrument cannot protect the dial plate, and the dial plate can be damaged by external force; thirdly, the operation process is complicated when the instrument is checked, and the working efficiency is influenced.

Therefore, referring to fig. 1 to 10, the present invention provides an instrument protection device to protect an instrument in all directions, so as to prevent the instrument from being damaged, thereby improving the service life of the instrument. In one embodiment, the instrument protection device includes a rectangular housing 100 and a strip-shaped telescopic unit 200, wherein the housing 100 has an opening and a cavity is formed therein, and the instrument to be protected can be placed in the cavity. It should be noted that the interior space of the housing 100 needs to be larger than the meter to be protected for meter placement.

The telescopic unit 200 is disposed at both sides of the opening of the housing 100, and the telescopic unit 200 plays a role of supporting and telescoping at both sides of the housing 100, so that the housing 100 can accommodate the meter or be separated from the meter, so as to protect the meter or view the data of the meter.

Specifically, the telescopic unit 200 includes telescopic pipes 201 connected to two side walls of the housing 100, a telescopic rod 202 located in the telescopic pipes 201, and a clamping strip 203 located in the telescopic rod 202; the top of card strip 203 is provided with buckle 203a, and this buckle 203a stretches out from telescopic link 202, and flexible pipe 201 inner wall is provided with the draw-in groove 201a with buckle 203a assorted, and buckle 203a can imbed in draw-in groove 201a, makes buckle 203a joint in draw-in groove 201a to the shell can't break away from easily under artifical noninterfere's the condition, has realized the better guard action to the instrument, and the structure is ingenious reasonable.

Further, the telescopic rod 202 is a hollow structure, the telescopic rod 202 moves in the telescopic tube 201 to change the length of the telescopic unit 200, the clamping strip 203 is located inside the telescopic rod 202, one end of the clamping strip 203a extends out of the telescopic rod 202 along the radial direction and is clamped into the clamping groove 201a on the inner wall of the telescopic tube 201, so that the position of the clamping strip can be fixed, the length of the telescopic unit 200 can be stabilized, the telescopic tube 201 and the telescopic rod 202 cannot move relatively, and the outer shell cannot be easily separated. When the catch 203a is disengaged from the catch 201a, the extension tube 201 and the extension rod 202 can move relatively, that is, the catch 203a is disengaged from the catch 201a to change the length of the extension unit 200.

Preferably, referring to fig. 4, 4 clamping grooves 201a are uniformly distributed in the extension tube 201 along the circumference, and correspondingly, 4 parts for cooperating with the extension tube are provided, for example, 4 extension rods 202 are provided, each extension rod 202 is provided with 1 clamping strip 203, and there are 4 clamping strips 203 in total, so that the outer shell cannot be easily separated.

Further, the telescopic unit 200 further includes a circular cover 204, a spring seat 205 and a spring 206, the cover 204 is disposed at the top end of the telescopic pipe 201, the spring seat 205 is disposed at the top end of the telescopic rod 202, and two ends of the spring 206 are respectively abutted to the cover 204 and the spring seat 205. The cover 204 and the extension tube 201 can be connected by screw threads, so as to be convenient to detach and mount; the spring seat 205 and the telescoping rod 202 may also be threaded. In implementation, when the buckle 203a is embedded in the slot 201a, the first spring 206 is pressed between the spring seat 205 and the cover 204, and the spring seat 205 tends to move away from the cover 204 under the tension of the first spring 206; when the buckle 203a is disengaged from the catch 201a, the telescopic rod 202 is pushed out of the telescopic tube 201 by the tension of the first spring 206, so that the length of the telescopic unit 200 is increased, and the housing 100 can be easily disengaged from the meter.

Further, referring to fig. 5, after the center position of the spring seat 205 extends to the preset position in the direction of the bottom, the spring seat extends to the direction of the telescopic rod 202 to form a supporting seat 205a, a second spring 207 abuts between the supporting seat 205a and the catch 203a, and the second spring 207 is used for abutting the catch 203a in the slot 201a to enhance the stability of the catch when the catch is engaged with the slot, so that the catch 203a is forced in the radial direction by the tension of the second spring 207 to firmly abut the catch 203a in the slot 201 a.

Preferably, as shown in fig. 6, the inner wall of the telescopic tube 201 extends axially from the locking groove 201a to the sliding groove 201b, the width of the sliding groove 201b is smaller than that of the locking groove 201a, the buckle 203a is separated from the locking groove 201a, enters the sliding groove 201b and slides along the sliding groove 201b, and the extending length of the sliding groove 201b is less than the end of the telescopic tube 201, so as to play a role of limiting and guiding. The telescopic rod 202 is hollow, a placing groove 202a is axially arranged in the telescopic rod 202, a rotating shaft 202b is arranged at the bottom end of the placing groove 202a, a notch 202c is transversely formed at the top end of the placing groove 202a, the buckle 203a penetrates through the notch 202c to be embedded in the clamping groove 201a, the bottom end of the clamping strip 203 is hinged to the rotating shaft 202b, the clamping strip 203 is placed in the placing groove 202a, the bottom end without the buckle 203a can rotate around the rotating shaft 202b, and one end of the buckle 203a in the notch 202c is embedded or separated from the clamping groove 201 a.

Further, the telescopic unit 200 further comprises a transmission member 208, a connecting rod 209 and a transmission rod 210, the transmission member 208 is located in the telescopic rod 202, the connecting rod 209 is hinged to the transmission member 208, the connecting rod 209 is hinged to the clamping strip 203, the transmission member 208 is fixedly connected to the transmission rod 210, and the transmission rod 210 is arranged on the axis of the telescopic rod 202.

Further, one end of the telescopic rod 202 is provided with an adjusting groove 202d, the bottom end of the transmission rod 210 is connected with an adjusting piece 211, the adjusting piece 211 radially extends out of the adjusting groove 202d, and the adjusting piece 211 axially moves in the adjusting groove 202d along the telescopic rod 202, so that the buckle 203a is separated from the clamping groove 201a by pulling the adjusting piece 211 in operation, the shell is separated from the instrument, and the operation is simple and easy.

The principle of the telescopic unit 200 of the present invention is: in an initial state, the outer shell 100 is sleeved on the instrument, the first spring 206 is extruded, the length of the telescopic unit 200 is shortest at this time, the buckle 203a is abutted to the clamping groove 201a by the tension of the second spring 207, the outer shell 100 is stably sleeved on the periphery of the instrument, if the instrument needs to be checked or overhauled, the outer shell 100 needs to be stretched outwards to separate the outer frame 100 from the instrument to expose the instrument, at this time, the adjusting piece 211 can be manually pulled to the bottom along the adjusting groove 202d, the adjusting piece 211 pulls the transmission rod 210 to enable the transmission piece 208 to move along the axis of the telescopic unit 200 to the direction of the instrument installation pipe and enable the transmission piece 208 to pull the connection rod 209, the connection rod 209 enables the clamping strip 203 to rotate around the shaft 202b, the buckle 203a moves towards the axis of the telescopic rod 202, at this time, the buckle 203a is separated from the clamping groove 201a, and the telescopic rod 202 is far away from the cover body 204 under the tension of the first spring 206, the buckle 203a falls into the chute 201b and continues to move in the chute 201b, the tension action of the first spring 206 causes the buckle 203a to move to the lowest end of the chute 201b and stop, at this moment, the housing 100 is separated from the instrument and stops at the position under the action of the first spring 206 and the second spring 207, and the instrument is convenient to check or overhaul, replace and the like.

When the instrument needs to be protected again, pressure in the direction of the instrument installation pipe is applied to the shell 100, when the pressure is larger than the elastic force of the first spring 206, the buckle 203a moves to the clamping groove 201a along the sliding groove 201b, and the tension of the second spring 207 pushes the buckle 203a to abut against the clamping groove 201a to complete protection.

Further, the instrument protection device of the present invention further includes a rotation unit 300, the rotation unit 300 is connected to the bottom end of the telescopic rod 202, the rotation unit 300 includes a first rotation seat 301 and a second rotation seat 302, the first rotation seat 301 is hinged to the second rotation seat 302, and the rotation unit 300 is connected between the telescopic unit 200 and the instrument installation pipeline to control the angle of the housing 100.

Further, the first rotating seat 301 is provided with a first hinge hole 301a, the second rotating seat 302 is provided with a second hinge hole 302a, and the first hinge hole 301a and the second hinge hole 302a are hinged through a connecting member 303; the first rotating seat 301 is provided with a first connecting end 301c, the second rotating seat 302 is provided with a second connecting end 302b, the first connecting end 301c is connected with the first end 3011, and the second connecting end 302b is connected with the second end 3021; the connecting member 303 is cylindrical, and the first hinge hole 301a and the second hinge hole 302a are both sleeved on the connecting member 303.

In addition, one end of the connecting piece 303 connected with the second hinge hole 302a is provided with a limiting block 303a, the inner side wall of the second hinge hole 302a is provided with a limiting groove 302a-1 along the axial direction, and the limiting block 303a moves along the axial direction of the connecting piece 303 in the limiting groove 302a-1, so that the connecting piece 303 can slide along the limiting groove 302a-1 and cannot slide relative to the second hinge hole 302a, and the connecting piece 303 and the second hinge hole 302a can rotate relative to each other and can slide along the axial direction in the second hinge hole 302 a.

Preferably, the rotating unit 300 further includes an end cover 304, a connecting spring 305, and a positioning member 306, wherein two ends of the connecting spring 305 are respectively fixedly connected to the end cover 304 and the positioning member 306, the connecting spring 305 is located in the connecting member 303, the end cover 304 is located on an outer end surface of the second hinge hole 302a, the positioning member 306 is located on an outer end surface of the first hinge hole 301a and is connected to the connecting member 303, the specific installation sequence is that the connecting member 303 is first installed in the first hinge hole 301a and the second hinge hole 302a along the limiting groove 302a-1, one end of the positioning member 306 is fixedly connected to the connecting spring 305 and then is installed to the second hinge hole 302a from the position of the first hinge hole 301a, one end of the connecting spring 305 is fixedly connected with the end cap 304 on the outer end face of the second hinge hole 302a, and the positioning member 306 and the end cap 304 are tightly attached to the end faces of the first hinge hole 301a and the second hinge hole 302a respectively under the pulling force of the connecting spring 305.

Preferably, the positioning member 306 is provided with a positioning protrusion 306a, a plurality of positioning holes 301b are uniformly formed on a surface of the first rotating base 301 contacting the positioning member 306 along the circumference of the first hinge hole 301a, and the positioning protrusion 306a is embedded in the positioning holes 301 b. Preferably, the connecting portion of the connecting member 303 and the positioning member 306 can only slide relative to the axis, but cannot rotate relative to the axis, and the connecting portion of the connecting member 303 and the positioning member 306 is configured to be non-circular.

The operating principle of the rotating unit 300 of the present invention is: when the housing 100 is sleeved on the instrument, the positioning hole 301b in which the positioning protrusion 306a is embedded is set to be the nth, n +1 and n +2 are uniformly arranged within 90 degrees clockwise by taking the nth as a starting point, and n-1 and n-2 are uniformly arranged within 90 degrees anticlockwise by taking the nth as a starting point, after the housing 100 is lifted, if the instrument is operated and a larger space is needed, the housing 100 is pulled, the first end 3011 is in a fixed state, the second end 3021 drives the second rotating base 302 to rotate under stress, when the applied force is larger than the elastic force of the connecting spring 305, the first hinged hole 301a and the second hinged hole 302a rotate relatively, the positioning protrusion 306a is separated from the nth positioning hole 301b, the connecting piece 303 slides along the limiting groove 302a-1, and rotates to the nth +1 positioning hole 301b, the positioning protrusion 306a is inserted into and positioned by the elastic force, and the above operations are repeated as the case may be, if necessary, the housing 100 is rotated or reset.

Further, as shown in fig. 10, a mounting ring 400 is connected to the rotating unit 300, the mounting ring 400 includes an arc plate 401 and a bolt 402, two ends of the arc plate 401 are fixedly connected by the bolt 402, and the diameter of the arc plate 401 is adapted to the diameter of the instrument mounting tube. The rotation unit 300 has one end mounted on the mounting ring 400 and the other end connected to the telescopic unit 200.

When the meter installation structure is used, the installation ring 400 is installed on an instrument installation pipe, the shell 100 is arranged outside the instrument, the first spring 206 is extruded, the length of the telescopic unit 200 is shortest, the buckle 203a is abutted to the clamping groove 201a by the tension of the second spring 207, the shell 100 is stably sleeved on the periphery of the instrument, when the instrument needs to be checked or overhauled, the shell 100 needs to be stretched outwards to separate the outer frame 100 from the instrument to expose the instrument, at the moment, the adjusting piece 211 can be pulled manually along the adjusting groove 202d, the adjusting piece 211 pulls the transmission rod 210 to enable the transmission piece 208 to move along the axis of the telescopic unit 200 to the direction of the instrument installation pipe, the transmission piece 208 pulls the connecting rod 209, the connecting rod 209 enables the clamping strip 203 to rotate around the shaft 202b, the buckle 203a moves towards the axis of the telescopic rod 202, at the moment, the buckle 203a is separated from the clamping groove 201a, the pretightening force of the first spring 206 enables the telescopic rod 202 to be far away from the cover body 204, the buckle 203a falls into the chute 201b and continues to move in the chute 201b, the buckle 203a is moved to the lowest end of the chute 201b and stops under the action of the pretightening force of the first spring 206, at the moment, the shell 100 is separated from the instrument and stops at the position under the action of the first spring 206 and the second spring 207, and the instrument can be checked or overhauled, replaced and the like.

When the meter needs to be protected again, pressure is applied to the housing 100, the pressure is greater than the elastic force of the first spring 206, so that the buckle 203a moves to the clamping groove 201a along the sliding groove 201b, and the tension of the second spring 207 enables the buckle 203a to abut against the clamping groove 201a to complete protection.

After the housing 100 is separated from the meter, if the meter needs to be operated and a larger space is needed, the housing 100 is pulled, the first end 3011 is in a fixed state, the second end 3021 drives the second rotating base 302 to rotate under a force, when the applied force is greater than the elastic force of the connecting spring 305, the first hinge hole 301a and the second hinge hole 302a rotate relatively, the positioning protrusion 306a is separated from the nth positioning hole 301b, the connecting member 303 slides along the limiting groove 302a-1, and when the connecting member rotates to the (n + 1) th positioning hole 301b, the positioning protrusion 306a is embedded in and positioned under the action of the elastic force, if necessary, the housing 100 continues to rotate or is reset, and the operations can be completed by repeating the operations according to the situation.

In conclusion, the structure of the invention is ingenious and reasonable, the better protection effect on the instrument is realized, the shell 100 is sleeved on the instrument, because the buckle 203a is embedded in the clamping groove 201a, the buckle 203a can not be easily separated under the condition of no manual intervention, the buckle 203a can be separated from the clamping groove 201a by pulling the adjusting piece 211 during operation, the shell 100 can be easily separated from the instrument under the action of the spring, and the shell 100 can be pulled by the arranged rotating unit 300 to incline the shell 100 to one side, so that the instrument inspection space is larger, and the instrument inspection is convenient.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. An instrument guard, comprising: a housing (100) and a telescopic unit (200), wherein,

the shell (100) is provided with an opening and a cavity for accommodating the instrument;

the telescopic unit (200) is positioned at two sides of the opening of the outer shell (100), and the telescopic unit (200) comprises a telescopic pipe (201) connected to the side wall of the outer shell (100), a telescopic rod (202) positioned in the telescopic pipe (201), and a clamping strip (203) positioned in the telescopic rod (202); the telescopic unit (200) further comprises a cover body (204), a spring seat (205) and a spring (206), the cover body (204) is arranged at the top end of the telescopic pipe (201), the spring seat (205) is arranged at the top end of the telescopic rod (202), and two ends of the spring (206) are respectively abutted to the cover body (204) and the spring seat (205); after the center of the spring seat (205) extends to a preset position from the bottom, the spring seat extends to the telescopic rod (202) to form a supporting seat (205a), a second spring (207) is abutted between the supporting seat (205a) and the buckle (203a), and the second spring (207) is used for abutting the buckle (203a) in the clamping groove (201 a); the telescopic unit (200) further comprises a transmission piece (208), a connecting rod (209) and a transmission rod (210) which are positioned in the telescopic rod (202); the transmission rod (210) is arranged on the axis of the telescopic rod (202), the transmission rod (210) is fixedly connected with the transmission piece (208), and the connecting rod (209) is hinged with the transmission piece (208) and the clamping strip (203) respectively;

the top of card strip (203) is provided with follow buckle (203a) that telescopic link (202) transversely stretched out, flexible pipe (201) inner wall be provided with buckle (203a) assorted draw-in groove (201a), buckle (203a) joint can be in draw-in groove (201 a).

2. The instrument protection device according to claim 1, wherein the telescopic rod (202) is hollow, a placing groove (202a) is axially formed in the inner wall of the telescopic rod (202), a rotating shaft (202b) is arranged at the bottom end of the placing groove (202a), a notch (202c) is formed by the top end of the placing groove (202a) in a transverse conduction mode, the clamping strip (203) is placed in the placing groove (202a), the bottom end of the clamping strip is hinged to the rotating shaft (202b), and a buckle (203a) of the clamping strip (203) can be clamped in the clamping groove (201a) through the notch (202 c).

3. The instrument protection device according to claim 1, characterized in that one end of the telescopic rod (202) is provided with an adjustment groove (202d), the bottom end of the transmission rod (210) is connected with an adjustment member (211), and the adjustment member (211) radially protrudes from the adjustment groove (202d) and moves in the axial direction of the telescopic rod (202) in the adjustment groove (202 d).

4. The instrument shelter according to claim 1, further comprising a rotation unit, wherein the rotation unit (300) is connected to the bottom end of the telescoping rod (202), and the rotation unit comprises a first rotation seat (301) and a second rotation seat (302);

the first rotating seat (301) is provided with a first hinge hole (301a), the second rotating seat (302) is provided with a second hinge hole (302a), and the first hinge hole (301a) is hinged to the second hinge hole (302a) through a connecting piece (303);

one end of the connecting piece (303) connected with the second hinge hole (302a) is provided with a limiting block (303a), the inner side wall of the second hinge hole (302a) is provided with a limiting groove (302a-1) along the axial direction, and the limiting block (303a) moves along the axial direction of the connecting piece (303) in the limiting groove (302 a-1).

5. The instrument guard of claim 4, wherein the rotary unit (300) further comprises an end cap (304), a connecting spring (305), and a positioning member (306);

the connecting spring (305) is located in the connecting piece (303), two ends of the connecting spring are respectively fixedly connected with the end cover (304) and the positioning piece (306), the end cover (304) is located on the outer end face of the second hinge hole (302a), and the positioning piece (306) is located on the outer end face of the first hinge hole (301a) and connected with the connecting piece (303).

6. The instrument protection device according to claim 5, wherein the positioning member (306) is provided with a positioning protrusion (306a), a plurality of positioning holes (301b) are uniformly formed in the surface of the first rotating base (301) contacting the positioning member (306) along the circumference of the first hinge hole (301a), and the positioning protrusion (306a) can be embedded in the positioning hole (301 b).

7. The instrument protection device according to claim 4, characterized in that a mounting ring (400) is connected to the rotating unit (300), the mounting ring (400) comprises an arc-shaped plate (401) and a bolt (402), two ends of the arc-shaped plate (401) are fixedly connected through the bolt (402), and the diameter of the arc-shaped plate (401) is adapted to the diameter of an instrument mounting tube.