CN112090455A - Constant temperature and humidity environment test box for testing vehicle-mounted satellite positioning terminal - Google Patents
Constant temperature and humidity environment test box for testing vehicle-mounted satellite positioning terminal Download PDFInfo
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- CN112090455A CN112090455A CN202010992712.1A CN202010992712A CN112090455A CN 112090455 A CN112090455 A CN 112090455A CN 202010992712 A CN202010992712 A CN 202010992712A CN 112090455 A CN112090455 A CN 112090455A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
- B01L1/02—Air-pressure chambers; Air-locks therefor
- B01L1/025—Environmental chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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Abstract
The invention discloses a constant temperature and humidity environment test box for testing a vehicle-mounted satellite positioning terminal, which comprises a box body base, wherein the top of the box body base is fixedly connected with a test box body, the bottom of an inner cavity of the test box body is fixedly connected with a supporting spring seat, two sides of the bottom of the inner cavity of the supporting spring seat are fixedly connected with buffer springs, the top of each buffer spring is fixedly connected with a supporting movable rod, and the top of each supporting movable rod is fixedly connected with a terminal placing seat. According to the invention, the vehicle-mounted satellite positioning terminal is placed in the terminal placing seat and is fixed through the fastening clamping plate, the vibration motor is started, the vibration environment of a vehicle is simulated, and the vibration resistance of the vehicle-mounted satellite positioning terminal is tested, so that the problems that the existing testing device has a single function, can not meet various data tests, needs a plurality of testing devices to be matched during the test of various data, is high in cost and troublesome in operation, and has a great influence on test data are solved.
Description
Technical Field
The invention relates to the technical field of environmental test boxes, in particular to a constant-temperature and constant-humidity environmental test box for testing a vehicle-mounted satellite positioning terminal.
Background
The environmental test box simulates natural environmental climate and the destructiveness to modern industrial products by scientific and technological means, the representative tests of the environmental test box comprise a low-pressure (high altitude) test, a high-temperature test, a low-temperature test, a thermal shock test, a solar radiation (sunshine) test, a rain test, a moisture-proof test, a mildew-proof test, a salt spray test, a sand dust test and the like, the test site of the environmental test can have wide representativeness, can carry out test items as much as possible, and can be close to the environment which can be battled in the future as much as possible, however, the environmental test site is often different from the real using environment, the environmental test is carried out for ensuring that the product keeps the functional reliability under all environments of expected use, transportation or storage during the specified service life, and is carried out for exposing the product to the natural or artificial environmental conditions to bear the effect, the method is characterized in that the performance of the product under the environmental conditions of actual use, transportation and storage is evaluated, the influence degree and the action mechanism of environmental factors are analyzed and researched, environmental test equipment is a method for verifying the quality of raw materials, semi-finished products and finished products by enterprises or institutions under the conditions of simulating various environmental climates, transportation, vibration and the like, and the method aims to verify whether the materials and the products reach the expected quality targets in research, development, design and manufacture by using various environmental test equipment for testing and is widely applied to the fields of universities, aviation, aerospace, military, shipbuilding, electricians, electronics, medical treatment, instruments and meters, petroleum instruments, petrochemical industry, medical treatment, gasoline and the like;
the vehicle-mounted satellite positioning instrument can also be called a vehicle-mounted satellite positioning instrument, and is a satellite positioning instrument arranged on a vehicle as the name implies, generally speaking, the vehicle-mounted satellite positioning instrument has the functions of satellite positioning, track query, voice communication, short message receiving and sending and the like, the system can be used for dispatching, commanding and managing digital municipal administration, digital logistics, government affairs and official vehicles, the vehicle-mounted positioning instruments sold on the market in the past are mainly based on a GPS navigation system, along with the great promotion of a Beidou satellite positioning system, the Beidou satellite positioning instrument based on the Beidou satellite positioning system is started to be sold, need service environment proof box when detecting on-vehicle satellite positioning terminal, but current testing arrangement function singleness can not satisfy multiple data test, needs a plurality of experimental apparatus cooperations during multiple data test, and not only with high costs, troublesome poeration moreover, it is also great to the influence of test data.
Disclosure of Invention
The invention aims to provide a constant-temperature and constant-humidity environment test box for testing a vehicle-mounted satellite positioning terminal, which has the advantage of multiple functions and solves the problems that the existing test device has single function, can not meet multiple data tests, needs a plurality of test devices to be matched during the multiple data tests, is high in cost and troublesome in operation, and has great influence on test data.
In order to achieve the purpose, the invention provides the following technical scheme: a constant temperature and humidity environment test box for testing a vehicle-mounted satellite positioning terminal comprises a box body base, wherein the top of the box body base is fixedly connected with a test box body, the bottom of an inner cavity of the test box body is fixedly connected with a supporting spring seat, two sides of the bottom of the inner cavity of the supporting spring seat are fixedly connected with buffer springs, the top of each buffer spring is fixedly connected with a supporting movable rod, the top of each supporting movable rod is fixedly connected with a terminal placing seat, the bottom of each terminal placing seat is fixedly connected with a vibration motor, two sides of the top of the test box body are respectively and fixedly connected with a high temperature heating box and a low temperature cooling box, the inner cavity of each high temperature heating box is fixedly connected with a constant temperature heating wire, the inner cavity of each low temperature cooling box is fixedly connected with a constant temperature refrigeration sheet, the tops of the high, the bottom of the high-temperature heating box and the bottom of the low-temperature cooling box are communicated with a wind collecting cover through a three-way pipe, the wind collecting cover is located in the inner cavity of the test box body, and an electromagnetic valve is arranged on the surface of the ventilation pipe.
Preferably, the surface cover that supports the movable rod is equipped with the spacing lantern ring, the equal fixedly connected with bracing piece in both sides of spacing lantern ring bottom, the bottom of bracing piece and the bottom fixed connection who supports the spring holder inner chamber.
Preferably, both sides of the terminal placing seat are in threaded connection with fastening threaded rods, and one ends of the fastening threaded rods are movably connected with fastening clamping plates through bearings.
Preferably, the upper end and the lower end of the two sides of the inner cavity of the terminal placing seat are fixedly connected with fixing sleeves, the inner cavity of each fixing sleeve is connected with a limiting movable rod in a sliding mode, and the other end of each limiting movable rod is fixedly connected with a fastening clamping plate.
Preferably, first limiting sliding grooves are formed in the top and the bottom of the limiting movable rod, first limiting sliding blocks are connected to the inner cavities of the first limiting sliding grooves in a sliding mode, and one sides, away from the inner cavities of the first limiting sliding grooves, of the first limiting sliding blocks are fixedly connected with the inner wall of the fixed sleeve.
Preferably, one side of the surface of the test chamber body is movably connected with a chamber door through a hinge, and the surface of the chamber door is fixedly connected with a handle.
Preferably, the slide has all been seted up to the both sides of seat inner chamber bottom are placed to the terminal, and the bottom fixedly connected with pulley of fastening splint, and pulley and slide sliding connection.
Preferably, the number of the fastening clamping plates is two, and one side of each fastening clamping plate is arc-shaped.
Preferably, the bottoms of the high-temperature heating box and the low-temperature cooling box are fixedly connected with a support, and the other end of the support is fixedly connected with the test box body.
Preferably, the constant head tank has all been seted up to the both sides of spacing lantern ring inner chamber, the reset spring groove has all been seted up to the both sides that support the movable rod surface, the inner chamber fixedly connected with reset spring body in reset spring groove, one side fixedly connected with locating lever of reset spring inslot wall is kept away from to the reset spring body, the one end that the reset spring body was kept away from to the locating lever extends to the inner chamber of constant head tank, and with the inner chamber sliding connection of constant head tank.
Preferably, a second limiting sliding groove is formed in the top and the bottom of the inner cavity of the reset spring groove, a second limiting sliding block is connected to the inner cavity of the second limiting sliding groove in a sliding mode, and one side, away from the inner cavity of the second limiting sliding groove, of the second limiting sliding block is fixedly connected with the positioning rod.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention carries out the high temperature resistance test by placing the vehicle-mounted satellite positioning terminal in the terminal placing seat and fixing the vehicle-mounted satellite positioning terminal through the fastening splint, starting the vibrating motor to simulate the vibration environment of the vehicle, testing the vibration resistance of the vehicle-mounted satellite positioning terminal, starting the constant temperature heating wire to release heat, blowing air to the inner cavity of the high temperature heating box through the blower, closing the electromagnetic valve at the top of the low temperature cooling box, leading the air flow generated by the blower to pass through the high temperature heating box, then blowing the heat generated by the constant temperature heating wire to the vehicle-mounted satellite positioning terminal at the top of the terminal placing seat through the air collecting cover, and carrying out the low temperature resistance test on the vehicle-mounted satellite positioning terminal, when the low temperature resistance test is needed, closing the electromagnetic valve at the top of the high temperature heating box, leading the air flow generated by the blower to be discharged outwards through the low temperature cooling box, thereby realize low temperature resistant test, solved current test device function singleness, can not satisfy multiple data test, need a plurality of experimental apparatus cooperations during multiple data test, not only with high costs, troublesome poeration moreover, also great problem is influenced to the test data.
2. According to the vehicle-mounted satellite positioning terminal, the fastening threaded rod and the fastening clamp plate are arranged, so that the effect of rotating the fastening threaded rod is achieved, the fastening clamp plate can fix the vehicle-mounted satellite positioning terminal, the vehicle-mounted satellite positioning terminal is prevented from falling off during vibration testing, and the effect of limiting the fastening clamp plate is achieved by arranging the fixing sleeve and the limiting movable rod.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the terminal mounting base according to the present invention;
FIG. 3 is a schematic cross-sectional view of the retaining sleeve of the present invention;
FIG. 4 is a schematic view of a door of the present invention;
FIG. 5 is a schematic top view of a cross-sectional structure of the retainer ring of the present invention.
In the figure: 1. a base of the box body; 2. a test box body; 3. a support spring seat; 4. a buffer spring; 5. a support movable rod; 6. a terminal placing seat; 7. a vibration motor; 8. a high temperature heating box; 9. a low temperature cooling tank; 10. heating wires at constant temperature; 11. a constant temperature refrigeration sheet; 12. a vent pipe; 13. a blower; 14. a wind collecting cover; 15. an electromagnetic valve; 16. a limiting lantern ring; 17. a support bar; 18. fastening a threaded rod; 19. fastening the clamping plate; 20. fixing the sleeve; 21. a limiting movable rod; 22. a first limiting chute; 23. a first limit slide block; 24. a box door; 25. positioning a groove; 26. a return spring groove; 27. a return spring body; 28. positioning a rod; 29. a second limiting chute; 30. and the second limiting sliding block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The box body base 1, the test box body 2, the supporting spring seat 3, the buffer spring 4, the supporting movable rod 5, the terminal placing seat 6, the vibration motor 7, the high-temperature heating box 8, the low-temperature cooling box 9, the constant-temperature heating wire 10, the constant-temperature refrigerating sheet 11, the ventilation pipe 12, the blower 13, the air collecting cover 14, the electromagnetic valve 15, the limiting lantern ring 16, the supporting rod 17, the fastening threaded rod 18, the fastening clamping plate 19, the fixed sleeve 20, the limiting movable rod 21, the first limiting sliding groove 22, the first limiting sliding block 23, the box door 24, the positioning groove 25, the resetting spring groove 26, the resetting spring body 27, the positioning rod 28, the second limiting sliding groove 29 and the second limiting sliding block 30 are all universal standard parts or parts known by technical manuals, and the structure and the principle of the box body can be known by technical manuals or conventional experimental methods.
Referring to fig. 1-5, a constant temperature and humidity environment test box for testing a vehicle-mounted satellite positioning terminal comprises a box body base 1, a test box body 2 is fixedly connected to the top of the box body base 1, a box door 24 is movably connected to one side of the surface of the test box body 2 through a hinge, a handle is fixedly connected to the surface of the box door 24, a supporting spring seat 3 is fixedly connected to the bottom of an inner cavity of the test box body 2, a buffer spring 4 is fixedly connected to both sides of the bottom of the inner cavity of the supporting spring seat 3, a supporting movable rod 5 is fixedly connected to the top of the buffer spring 4, a limiting ring 16 is sleeved on the surface of the supporting movable rod 5, supporting rods 17 are fixedly connected to both sides of the bottom of the limiting ring 16, the bottom of the supporting rods 17 is fixedly connected to the bottom of the inner cavity of the supporting spring seat 3, a terminal placing seat, one end of a fastening threaded rod 18 is movably connected with a fastening clamp plate 19 through a bearing, the upper end and the lower end of the two sides of an inner cavity of a terminal placing seat 6 are fixedly connected with a fixed sleeve 20, the inner cavity of the fixed sleeve 20 is connected with a limiting movable rod 21 in a sliding way, the other end of the limiting movable rod 21 is fixedly connected with the fastening clamp plate 19, the top and the bottom of the limiting movable rod 21 are respectively provided with a first limiting chute 22, the inner cavity of the first limiting chute 22 is connected with a first limiting slide block 23 in a sliding way, one side of the first limiting slide block 23 far away from the inner cavity of the first limiting chute 22 is fixedly connected with the inner wall of the fixed sleeve 20, the bottom of the terminal placing seat 6 is fixedly connected with a vibrating motor 7, the two sides of the top of a test box body 2 are respectively and fixedly connected with a high-temperature heating box 8 and a low-temperature, the inner cavity of the high-temperature heating box 8 is fixedly connected with a constant-temperature heating wire 10, the inner cavity of the low-temperature cooling box 9 is fixedly connected with a constant-temperature refrigerating sheet 11, the top parts of the high-temperature heating box 8 and the low-temperature cooling box 9 are communicated with a ventilation pipe 12, the top part of the ventilation pipe 12 is communicated with a blower 13, the bottoms of the high-temperature heating box 8 and the low-temperature cooling box 9 are communicated with a wind-collecting cover 14 through a three-way pipe, the wind-collecting cover 14 is positioned in the inner cavity of the test box body 2, the surface of the ventilation pipe 12 is provided with an electromagnetic valve 15, the two sides of the inner cavity of the terminal placing seat 6 are both provided with slideways, the bottom of the fastening splint 19 is fixedly connected with pulleys, the pulleys are in sliding connection with the slideways, the number of the fastening splint 19 is two, one side of the fastening splint 19 is arc-shaped, a positioning rod 28 is fixedly connected to one side of the reset spring body 27 far away from the inner wall of the reset spring groove 26, one end of the positioning rod 28 far away from the reset spring body 27 extends to the inner cavity of the positioning groove 25 and is in sliding connection with the inner cavity of the positioning groove 25, second limiting sliding grooves 29 are formed in the top and the bottom of the inner cavity of the reset spring groove 26, a second limiting sliding block 30 is in sliding connection with the inner cavity of the second limiting sliding groove 29, one side of the second limiting sliding block 30 far away from the inner cavity of the second limiting sliding groove 29 is fixedly connected with the positioning rod 28, a vehicle-mounted satellite positioning terminal is placed in the terminal placing seat 6 and is fixed through a fastening clamping plate 19, the vibration motor 7 is started, the vibration environment of a vehicle is simulated, the vibration resistance of the vehicle-mounted satellite positioning terminal is tested, heat can be released after the constant temperature heating wire 10 is, electromagnetic valve 15 at low temperature cooling box 9 top is closed, the air current that hair-dryer 13 produced passes through high temperature heating box 8, then the heat that produces constant temperature heating wire 10 blows to the on-vehicle satellite positioning terminal at terminal placing seat 6 top through air-collecting cover 14, thereby carry out high temperature resistant test to it, when needs carry out low temperature resistant test, electromagnetic valve 15 with high temperature heating box 8 top is closed, the air current that hair-dryer 13 produced only can outwards be arranged through low temperature cooling box 9 and is dispersed, can blow the air conditioning that constant temperature refrigeration piece 11 produced by air-collecting cover 14 on the on-vehicle satellite positioning terminal this moment, thereby realize low temperature resistant test, current testing arrangement function singleness has been solved, can not satisfy multiple data test, need the cooperation of a plurality of experimental apparatus during multiple data test, not only with high costs, and troublesome poeration, also great problem is influenced to experimental data.
When the device is used, the electric elements are started through the external controller, the vehicle-mounted satellite positioning terminal is placed in the terminal placing seat 6 and is fixed through the fastening clamping plate 19, the vibration motor 7 is started to simulate the vibration environment of a vehicle, the vibration resistance of the vehicle-mounted satellite positioning terminal is tested, the constant temperature heating wire 10 releases heat after being started, the inner cavity of the high temperature heating box 8 is blown through the blower 13, the electromagnetic valve 15 at the top of the low temperature cooling box 9 is closed, the air flow generated by the blower 13 passes through the high temperature heating box 8, then the heat generated by the constant temperature heating wire 10 is blown to the vehicle-mounted satellite positioning terminal at the top of the terminal placing seat 6 through the air collecting cover 14, so that the high temperature resistance test is carried out on the vehicle-mounted satellite positioning terminal, when the low temperature resistance test is required, the electromagnetic valve 15 at the top of the high temperature heating box 8 is closed, and the air, can blow the air conditioning that constant temperature refrigeration piece 11 produced by this moment by air-collecting cover 14 to on-vehicle satellite positioning terminal to realize low temperature resistant test, solved current testing arrangement function singleness, can not satisfy multiple data test, need a plurality of experimental apparatus cooperations during multiple data test, not only with high costs, troublesome poeration moreover, also great problem is influenced to the test data.
The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (11)
1. The utility model provides a constant temperature and humidity environmental test case is used in inspection of on-vehicle satellite positioning terminal, includes box base (1), its characterized in that: the test box comprises a box body base (1), a test box body (2) is fixedly connected to the top of the box body base (1), a supporting spring seat (3) is fixedly connected to the bottom of an inner cavity of the test box body (2), buffer springs (4) are fixedly connected to the two sides of the bottom of the inner cavity of the supporting spring seat (3), a supporting movable rod (5) is fixedly connected to the top of the buffer springs (4), a terminal placing seat (6) is fixedly connected to the top of the supporting movable rod (5), a vibration motor (7) is fixedly connected to the bottom of the terminal placing seat (6), a high-temperature heating box (8) and a low-temperature cooling box (9) are fixedly connected to the two sides of the top of the test box body (2) respectively, a constant-temperature heating wire (10) is fixedly connected to the inner cavity of the high-temperature heating box (8), a constant-temperature cooling wire (11) is fixedly connected to the inner cavity of, the top of the ventilation pipe (12) is communicated with a blower (13), the bottoms of the high-temperature heating box (8) and the low-temperature cooling box (9) are communicated with a wind collecting cover (14) through a three-way pipe, the wind collecting cover (14) is located in the inner cavity of the test box body (2), and an electromagnetic valve (15) is arranged on the surface of the ventilation pipe (12).
2. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 1, characterized in that: the surface cover that supports movable rod (5) is equipped with spacing lantern ring (16), the equal fixedly connected with bracing piece (17) in both sides of spacing lantern ring (16) bottom, the bottom of bracing piece (17) and the bottom fixed connection who supports spring holder (3) inner chamber.
3. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 1, characterized in that: the terminal placing seat is characterized in that two sides of the terminal placing seat (6) are in threaded connection with fastening threaded rods (18), and one ends of the fastening threaded rods (18) are movably connected with fastening clamping plates (19) through bearings.
4. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 1, characterized in that: the terminal is placed upper end and the equal fixedly connected with fixed sleeve pipe (20) of lower extreme of seat (6) inner chamber both sides, the inner chamber sliding connection of fixed sleeve pipe (20) has spacing movable rod (21), the other end and the fastening splint (19) fixed connection of spacing movable rod (21).
5. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicular satellite positioning terminal according to claim 4, wherein: first spacing spout (22) have all been seted up to the top and the bottom of spacing movable rod (21), the inner chamber sliding connection of first spacing spout (22) has first spacing slider (23), one side that first spacing spout (22) inner chamber was kept away from in first spacing slider (23) and the inner wall fixed connection of fixed sleeve (20).
6. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 1, characterized in that: one side of the surface of the test box body (2) is movably connected with a box door (24) through a hinge, and the surface of the box door (24) is fixedly connected with a handle.
7. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 1, characterized in that: the slide has all been seted up to the both sides of seat (6) inner chamber bottom are placed to the terminal, and the bottom fixedly connected with pulley of fastening splint (19), and pulley and slide sliding connection.
8. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicular satellite positioning terminal according to claim 3, characterized in that: the number of the fastening clamping plates (19) is two, and one side of each fastening clamping plate (19) is arc-shaped.
9. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 1, characterized in that: the bottom of the high-temperature heating box (8) and the bottom of the low-temperature cooling box (9) are fixedly connected with supports, and the other ends of the supports are fixedly connected with the test box body (2).
10. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicle-mounted satellite positioning terminal according to claim 2, characterized in that: constant head tank (25) have all been seted up to the both sides of spacing lantern ring (16) inner chamber, reset spring groove (26) have all been seted up to the both sides that support movable rod (5) surface, the inner chamber fixedly connected with reset spring body (27) in reset spring groove (26), one side fixedly connected with locating lever (28) of reset spring groove (26) inner wall are kept away from in reset spring body (27), the one end that reset spring body (27) were kept away from in locating lever (28) extends to the inner chamber of constant head tank (25), and with the inner chamber sliding connection of constant head tank (25).
11. The constant-temperature constant-humidity environmental test chamber for the inspection of the vehicular satellite positioning terminal according to claim 10, wherein: second limiting sliding grooves (29) are formed in the top and the bottom of the inner cavity of the reset spring groove (26), second limiting sliding blocks (30) are connected to the inner cavity of the second limiting sliding grooves (29) in a sliding mode, and one sides, away from the inner cavity of the second limiting sliding grooves (29), of the second limiting sliding blocks (30) are fixedly connected with the positioning rods (28).
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| CN202010992712.1A CN112090455A (en) | 2020-09-21 | 2020-09-21 | Constant temperature and humidity environment test box for testing vehicle-mounted satellite positioning terminal |
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| CN202010992712.1A CN112090455A (en) | 2020-09-21 | 2020-09-21 | Constant temperature and humidity environment test box for testing vehicle-mounted satellite positioning terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894474A (en) * | 2022-04-29 | 2022-08-12 | 杭州犇犇机械有限公司 | Vibration tester system and testing method for automobile transmission system |
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