Constant-temperature and constant-humidity chamber for detecting quality of PVC (polyvinyl chloride) colloidal particles

Abstract

The utility model provides a constant temperature and humidity chamber for PVC colloidal particle quality detection, and relates to the technical field of constant temperature and humidity chambers, the constant temperature and humidity chamber comprises a constant temperature and humidity chamber body, the top of the constant temperature and humidity chamber body is fixedly connected with a control terminal, and the two ends of the edge of one side of the constant temperature and humidity chamber body are fixedly connected with hinges. According to the basket shelf, the pulled-out shelves are inserted into the mounting grooves with the appropriate height, the shelves are fixed through the limiting balls under the elastic force of the second springs, and the shelves are adjusted to the appropriate height, so that the shelves can be adjusted according to baskets with different heights to adapt to the baskets with different heights; the control terminal judges whether the coil is powered on or not according to temperature data monitored by the temperature sensor, the coil generates magnetic force and attracts the moving rod to move towards the inner cavity of the winding reel, and the closing door is opened, so that the situation that a detector is scalded by opening the closing door due to the fact that the temperature of the inner cavity of the constant-temperature and constant-humidity box body is too high is avoided.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature and humidity chamber technology, and in particular to a constant temperature and humidity chamber for PVC granule quality testing. Background Technology

[0002] PVC granules, or polyvinyl chloride, are a high molecular weight compound, and PVC plastic is one of the most widely used plastics, available in a wide variety of types and colors. Before leaving the factory, PVC granules need to undergo quality assessment. A constant temperature and humidity chamber for PVC granule quality testing is a device used to test the performance of materials under various environmental conditions, evaluating their heat resistance, cold resistance, dryness resistance, and moisture resistance. It is widely used in the quality inspection of PVC granules before they leave the factory.

[0003] However, in the existing technology, when using a constant temperature and humidity chamber for PVC granule quality testing to test PVC granules, it has been found that the test temperature may reach 150℃ or higher during the testing process. Testers may be burned if they open the constant temperature and humidity chamber before the internal temperature of the PVC granule quality testing chamber has dropped. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a constant temperature and humidity chamber for PVC granule quality testing, comprising: a constant temperature and humidity chamber body, a control terminal fixedly connected to the top of the constant temperature and humidity chamber body, hinges fixedly connected to both ends of one side edge of the constant temperature and humidity chamber body, a closing door fixedly connected to the other end of the two hinges, a handle fixedly connected to the other end of one side of the closing door, baffles fixedly connected to both sides of the inner cavity of the constant temperature and humidity chamber body near the edge, a lock groove provided at the center position of the other side of the inner cavity of the constant temperature and humidity chamber body near the edge, a temperature sensor fixedly connected to the top of the inner cavity of the constant temperature and humidity chamber body, a closing door locking assembly provided at the middle position of the other end of the other side of the closing door, and a height-adjustable shelf assembly provided in the inner cavity of the constant temperature and humidity chamber body.

[0006] Furthermore, the closing door locking assembly includes a lock cylinder, a through hole is provided on one side of the top of the lock cylinder, the through hole communicates with the inner cavity of the lock cylinder, a lock block movable groove is provided at one end of the lock cylinder, the lock block movable groove communicates with the inner cavity of the lock cylinder, a support plate is fixedly embedded in the inner cavity of the lock cylinder, a fixed cylinder is fixedly connected to one side of the support plate and one side of the inner cavity of the lock cylinder, and fixed plates are fixedly connected to both ends of the inner cavity of the lock cylinder, the fixed plates are located between the lock block movable groove and the support plate.

[0007] Furthermore, a winding cylinder is sleeved on the surface of the two fixed cylinders, and a coil is wound around the surface of the winding cylinder. A movable rod is movably installed in the inner cavity of the support plate and the fixed plate. A limiting plate is fixedly sleeved on the surface of the movable rod, and the limiting plate is located between the fixed plate and the support plate. A spring is sleeved on the surface of the movable rod. One end of the spring is fixedly connected to one side of the limiting plate, and the other end of the spring is fixedly connected to one side of the support plate. A locking block is fixedly connected to one end of the movable rod.

[0008] Furthermore, the height-adjustable shelf assembly includes multiple fixing strips and multiple shelves. Each of the multiple fixing strips has a mounting groove on one side. Each of the multiple mounting grooves has a limit ball movable groove at both ends. Each of the multiple limit ball movable grooves has a sleeve fixedly connected to one side of its inner cavity. Each of the multiple sleeves has a T-shaped rod movably embedded inside its interior. Each of the multiple T-shaped rods has a limit ball fixedly connected to its other end. Each of the multiple sleeves has a second spring fitted on its surface. One end of each second spring is fixedly connected to one side of the inner cavity of the multiple limit ball movable grooves, and the other end of each second spring is fixedly connected to the surface of the multiple limit balls.

[0009] Furthermore, each of the multiple shelves has a limiting groove at both ends, and the surfaces of the multiple shelves at both ends are movably embedded in the multiple mounting grooves. The surfaces of the multiple limiting balls are movably embedded in the multiple limiting grooves. The surfaces of the multiple shelves have multiple ventilation grooves that extend through them, and one end of each of the multiple shelves has a handle groove that extends through it.

[0010] Furthermore, one side of the lock is fixedly connected to the center of one end of the closed door.

[0011] Furthermore, one side of each of the aforementioned fixing strips is fixedly connected to both sides of the inner cavity of the constant temperature and humidity chamber.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the extended shelf is inserted into the mounting groove at a suitable height, and the shelf is fixed by the limiting ball under the elastic force of the second spring. The shelf is adjusted to a suitable height. This design allows the shelf to be adjusted according to the different heights of the basketball hoops, thus adapting to different heights of basketball hoops.

[0014] 2. In this utility model, the control terminal determines whether to energize the coil based on the temperature data monitored by the temperature sensor. The coil generates magnetic force and attracts the moving rod to move into the inner cavity of the winding drum, thus opening the closed door. This design avoids burns to the testing personnel when opening the closed door due to excessively high internal temperature of the constant temperature and humidity chamber. Attached Figure Description

[0015] Figure 1 This utility model provides an overview schematic diagram of a constant temperature and humidity chamber for PVC granule quality testing.

[0016] Figure 2 A side view of a constant temperature and humidity chamber for PVC granule quality testing provided by this utility model;

[0017] Figure 3 A cross-sectional view of the closing door locking assembly of a constant temperature and humidity chamber for PVC granule quality testing provided by this utility model;

[0018] Figure 4 A top sectional view of a constant temperature and humidity chamber for PVC granule quality testing provided by this utility model;

[0019] Figure 5 This is a schematic diagram of point A of a constant temperature and humidity chamber for testing the quality of PVC granules provided by this utility model.

[0020] Legend:

[0021] 1. Constant temperature and humidity chamber body; 101. Control terminal; 102. Hinge; 103. Closing door; 104. Handle; 105. Baffle; 106. Lock slot; 107. Temperature sensor; 2. Closing door locking assembly; 201. Lock chamber; 202. Wiring hole; 203. Lock block movable slot; 204. Support plate; 205. Fixing cylinder; 206. Fixing plate; 207. Winding cylinder; 20 8. Coil; 209. Moving rod; 210. Limiting plate; 211. Spring 1; 212. Locking block; 3. Height-adjustable shelf assembly; 301. Fixing strip; 302. Mounting groove; 303. Limiting ball movable groove; 304. Sleeve; 305. T-shaped rod; 306. Limiting ball; 307. Spring; 308. Shelf; 309. Limiting groove; 310. Ventilation groove; 311. Handle groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: a constant temperature and humidity chamber for PVC granule quality testing, comprising: a constant temperature and humidity chamber body 1, a control terminal 101 fixedly connected to the top of the constant temperature and humidity chamber body 1, hinges 102 fixedly connected to both ends of one side edge of the constant temperature and humidity chamber body 1, a closing door 103 fixedly connected to the other end of the two hinges 102, a handle 104 fixedly connected to the other end of one side of the closing door 103, baffles 105 fixedly connected to both sides of the inner cavity of the constant temperature and humidity chamber body 1 near the edge, a lock groove 106 opened at the center position of the other side of the inner cavity of the constant temperature and humidity chamber body 1 near the edge, a temperature sensor 107 fixedly connected to the top of the inner cavity of the constant temperature and humidity chamber body 1, a closing door locking assembly 2 provided at the middle position of the other end of the other side of the closing door 103, and a height-adjustable shelf assembly 3 provided in the inner cavity of the constant temperature and humidity chamber body 1.

[0024] Specifically: The extended shelf 308 is inserted into the mounting slot 302 at a suitable height. The shelf 308 is fixed by the lower limit ball 306 under the elastic force of the spring 307. The shelf 308 is adjusted to a suitable height. This design allows the shelf 308 to be adjusted according to the baskets of different heights to adapt to them. The control terminal 101 determines whether to energize the coil 208 based on the temperature data monitored by the temperature sensor 107. The coil 208 generates a magnetic force and attracts the moving rod 209 to move into the inner cavity of the winding drum 207, opening the closing door 103. This design avoids burns to the testing personnel when opening the closing door 103 due to excessively high internal temperature of the constant temperature and humidity chamber body 1. The constant temperature and humidity chamber body 1 is a commonly used constant temperature and humidity chamber for PVC granule quality testing. The constant temperature and humidity chamber body 1 has embedded constant temperature and humidity measures, the specific structure of which will not be described here.

[0025] In one embodiment, the door locking assembly 2 includes a lock cylinder 201. A wire hole 202 is provided through one side of the top of the lock cylinder 201, and the wire hole 202 communicates with the inner cavity of the lock cylinder 201. A lock block movable groove 203 is provided through one end of the lock cylinder 201, and the lock block movable groove 203 communicates with the inner cavity of the lock cylinder 201. A support plate 204 is fixedly embedded in the inner cavity of the lock cylinder 201. A fixing cylinder 205 is fixedly connected to one side of the support plate 204 and one side of the inner cavity of the lock cylinder 201. Fixing plates 206 are fixedly connected to both ends of the inner cavity of the lock cylinder 201, and the fixing plates 206 are located between the lock block movable groove 203 and the support plate 204.

[0026] Specifically, as shown in the figure: the wire hole 202 provides space for the power supply wire of the coil 208 to be threaded through.

[0027] In one embodiment, a winding cylinder 207 is sleeved on the surface of two fixed cylinders 205, and a coil 208 is wound around the surface of the winding cylinder 207. A moving rod 209 is movably installed in the inner cavity of the support plate 204 and the fixed plate 206. A limiting plate 210 is fixedly sleeved on the surface of the moving rod 209. The limiting plate 210 is located between the fixed plate 206 and the support plate 204. A spring 211 is sleeved on the surface of the moving rod 209. One end of the spring 211 is fixedly connected to one side of the limiting plate 210, and the other end of the spring 211 is fixedly connected to one side of the support plate 204. A locking block 212 is fixedly connected to one end of the moving rod 209.

[0028] Specifically, as shown in the figure: the lock chamber 201 limits the movement of the moving rod 209, ensuring that the lock block 212 is always partially embedded in the lock block movable groove 203, preventing the moving rod 209 from detaching from the inner cavity of the support plate 204 and the fixing plate 206; the surface of the lock block 212 is always partially embedded in the lock block movable groove 203, making it easier for the lock block 212 to move into the lock block movable groove 203 under the pressure of the inner wall of the constant temperature and humidity chamber body 1.

[0029] In one embodiment, the height-adjustable shelf assembly 3 includes multiple fixing bars 301 and multiple shelves 308. Each fixing bar 301 has a mounting groove 302 on one side. Each mounting groove 302 has a limiting ball movable groove 303 at both ends. Each limiting ball movable groove 303 has a sleeve 304 fixedly connected to one side of its inner cavity. Each sleeve 304 has a T-shaped rod 305 movably embedded inside its interior. Each T-shaped rod 305 has a limiting ball 306 fixedly connected to its other end. Each sleeve 304 has a spring 307 fitted on its surface. Each spring 307 has one end fixedly connected to one side of its inner cavity in the limiting ball movable groove 303, and the other end fixedly connected to the surface of the limiting ball 306.

[0030] Specifically, as shown in the figure: the inner cavity of the sleeve 304 is T-shaped, which provides movement space for the T-shaped rod 305 and limits the movement of the T-shaped rod 305, ensuring that the limiting ball 306 is always mostly embedded in the inner cavity of the limiting ball movement groove 303.

[0031] In one embodiment, each of the two ends of the multiple shelves 308 has a limiting groove 309, the surfaces of the multiple shelves 308 are movably embedded in the multiple mounting grooves 302, the surfaces of the multiple limiting balls 306 are movably embedded in the multiple limiting grooves 309, the surfaces of the multiple shelves 308 are provided with multiple ventilation grooves 310, and one end of each of the multiple shelves 308 is provided with a handle groove 311.

[0032] Specifically, as shown in the figure: the opening of the handle groove 311 makes it easy for workers to grip and pull out or insert the shelf 308.

[0033] In one embodiment, one side of the lock cylinder 201 is fixedly connected to the center of one end of the closed door 103.

[0034] Specifically, as shown in the figure: the lock cylinder 201 is fixedly connected to one side of the closed door 103. The installation position of the lock cylinder 201 is aligned with the lock groove 106, so that the lock block 212 can move freely inside the lock groove 106 to lock the closed door 103.

[0035] In one embodiment, one side of a plurality of fixing strips 301 is fixedly connected to both sides of the inner cavity of the constant temperature and humidity chamber body 1.

[0036] Specifically, as shown in the figure: the side of the fixing strip 301 is fixedly connected to both sides of the inner cavity of the constant temperature and humidity chamber body 1 to fix the fixing strip 301.

[0037] Working principle: Connect this PVC granule quality testing constant temperature and humidity chamber to an external power supply device to provide power to the constant temperature and humidity chamber. The control terminal 101 is associated with the constant temperature and humidity chamber body 1 and the coil 208 for control. The temperature sensor 107 can transmit the monitored temperature data of the inner cavity of the constant temperature and humidity chamber body 1 to the control terminal 101 in real time.

[0038] Place the PVC granules to be tested in the basket. Adjust the height of the shelf 308 according to the height of the basket. Pull the shelf 308 by holding the handle groove 311. The limiting ball 306 is squeezed by the shelf 308 and moves into the inner cavity of the limiting ball movement groove 303. The second spring 307 deforms under the force. After the limiting ball 306 is no longer limiting it, the shelf 308 can be removed. After the shelf 308 is no longer squeezing, the limiting ball 306 returns to its initial position under the elastic force of the second spring 307. Insert the pulled-out shelf 308 into the installation groove 302 at the appropriate height. On the same principle, the limiting ball 306 fixes the shelf 308 after the position is adjusted under the elastic force of the second spring 307. After adjusting the shelf 308 to the appropriate height, place the basket containing the PVC granules on the surface of the shelf 308.

[0039] This design allows the 308 shelf to be adjusted to accommodate basketball hoops of different heights.

[0040] When the closed door 103 is closed, the locking block 212 moves into the locking block movable groove 203 under the pressure of the inner wall of the constant temperature and humidity chamber body 1. The spring 211 deforms. When the locking block 212 reaches the position of the locking groove 106, under the action of the elastic force of the spring 211, the locking block 212 extends into the interior of the locking groove 106, completing the locking of the closed door 103. The shape of the locking block 212 is inclined at an angle to the inner cavity of the constant temperature and humidity chamber body 1. The locking block 212 will only move into the inner cavity of the locking block movable groove 203 under the pressure of the inner wall of the constant temperature and humidity chamber body 1 when it moves into the inner cavity of the constant temperature and humidity chamber body 1. When the locking block 212 is embedded in the inner cavity of the locking groove 106 and is in the locked state, the closed door 103 is limited by the baffle 105 and cannot continue to move into the inner cavity of the constant temperature and humidity chamber body 1. That is, the closed door 103 is in the closed and locked state.

[0041] The constant temperature and humidity chamber body 1 is started by the control terminal 101 to detect the PVC granules in the inner cavity. When the temperature inside the constant temperature and humidity chamber body 1 is high, the tester tries to open the closed door 103 through the control terminal 101. The control terminal 101 will not operate the closed door locking component 2 based on the temperature data monitored by the temperature sensor 107. When the temperature inside the constant temperature and humidity chamber body 1 is suitable, the tester tries to open the closed door 103 through the control terminal 101. The control terminal 101 will energize the coil 208 based on the temperature data monitored by the temperature sensor 107. The coil 208 generates a magnetic force and attracts the moving rod 209 to move into the inner cavity of the winding drum 207. The tester can then hold the handle 104 to open the closed door 103.

[0042] This design prevents personnel from being burned when opening the closed door 103 due to excessively high internal temperature of the constant temperature and humidity chamber body 1.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A constant temperature and humidity chamber for testing the quality of PVC granules, characterized in that, include: The constant temperature and humidity chamber body (1) has a control terminal (101) fixedly connected to the top of the constant temperature and humidity chamber body (1). Both ends of one side edge of the constant temperature and humidity chamber body (1) are fixedly connected to hinges (102). The other ends of the two hinges (102) are fixedly connected to a closing door (103). The other end of one side of the closing door (103) is fixedly connected to a handle (104). Both sides of the inner cavity of the constant temperature and humidity chamber body (1) near the edge are fixedly connected to baffles (105). The center position of the other side of the inner cavity of the constant temperature and humidity chamber body (1) near the edge is provided with a lock groove (106). The top of the inner cavity of the constant temperature and humidity chamber body (1) is fixedly connected to a temperature sensor (107). The middle position of the other end of the other side of the closing door (103) is provided with a closing door locking assembly (2). The inner cavity of the constant temperature and humidity chamber body (1) is provided with a height-adjustable shelf assembly (3).

2. The constant temperature and humidity chamber for PVC granule quality testing according to claim 1, characterized in that: The closing door locking assembly (2) includes a lock cylinder (201). A wire hole (202) is provided through one side of the top of the lock cylinder (201), and the wire hole (202) communicates with the inner cavity of the lock cylinder (201). A lock block movable groove (203) is provided through one end of the lock cylinder (201), and the lock block movable groove (203) communicates with the inner cavity of the lock cylinder (201). A support plate (204) is fixedly embedded in the inner cavity of the lock cylinder (201). A fixing cylinder (205) is fixedly connected to one side of the support plate (204) and one side of the inner cavity of the lock cylinder (201). A fixing plate (206) is fixedly connected to both ends of the inner cavity of the lock cylinder (201). The fixing plate (206) is located between the lock block movable groove (203) and the support plate (204).

3. The constant temperature and humidity chamber for PVC granule quality testing according to claim 2, characterized in that: Two fixed cylinders (205) are fitted with winding cylinders (207), and coils (208) are wound around the surface of the winding cylinders (207). A moving rod (209) is movably installed in the inner cavity of the support plate (204) and the fixed plate (206). A limiting plate (210) is fixedly fitted on the surface of the moving rod (209). The limiting plate (210) is located between the fixed plate (206) and the support plate (204). A spring (211) is fitted on the surface of the moving rod (209). One end of the spring (211) is fixedly connected to one side of the limiting plate (210), and the other end of the spring (211) is fixedly connected to one side of the support plate (204). A locking block (212) is fixedly connected to one end of the moving rod (209).

4. The constant temperature and humidity chamber for PVC granule quality testing according to claim 1, characterized in that: The height-adjustable shelf assembly (3) includes multiple fixing bars (301) and multiple shelves (308). Each of the multiple fixing bars (301) has a mounting groove (302) on one side. Each of the multiple mounting grooves (302) has a limit ball movable groove (303) at both ends of its inner cavity. Each of the multiple limit ball movable grooves (303) has a sleeve (304) fixedly connected to one side of its inner cavity. Each of the multiple sleeves (304) has a T-shaped rod (305) movably embedded inside its interior. Each of the multiple T-shaped rods (305) has a limit ball (306) fixedly connected to the other end of its interior. Each of the multiple sleeves (304) has a spring (307) fitted on its surface. One end of each spring (307) is fixedly connected to one side of the inner cavity of each limit ball movable groove (303), and the other end of each spring (307) is fixedly connected to the surface of each limit ball (306).

5. A constant temperature and humidity chamber for PVC granule quality testing according to claim 4, characterized in that: Each of the multiple shelves (308) has a limiting groove (309) at both ends. The surfaces of the multiple shelves (308) are movably embedded in the interior of the multiple mounting grooves (302). The surfaces of the multiple limiting balls (306) are movably embedded in the interior of the multiple limiting grooves (309). The surfaces of the multiple shelves (308) are provided with multiple ventilation grooves (310). One end of each of the multiple shelves (308) is provided with a handle groove (311).

6. A constant temperature and humidity chamber for PVC granule quality testing according to claim 2, characterized in that: One side of the lock (201) is fixedly connected to the center of one end of the closed door (103).

7. A constant temperature and humidity chamber for PVC granule quality testing according to claim 4, characterized in that: One side of each of the fixing strips (301) is fixedly connected to both sides of the inner cavity of the constant temperature and humidity chamber body (1).

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