Multi-point temperature detection system with stable fulcrum for horizontal warehouse

Abstract

A multipoint temperature detection system with a stable fulcrum for a horizontal warehouse comprises a temperature measurement cable, the upper end of the temperature measurement cable is wound on a roller arranged on a warehouse beam of the horizontal warehouse, the lower end of the temperature measurement cable is provided with a balancing weight, and the warehouse floor of the horizontal warehouse is provided with a hook for hooking the lower end of the temperature measurement cable. The outer diameter of the balancing weight is larger than that of the temperature measuring cable, the hook comprises a first base block and a second base block which are distributed at intervals, a hooking position used for hooking the lower end of the temperature measuring cable is formed between the first base block and the second base block, and two hook rods are arranged on the first base block in a sliding mode. The distance between the two hook rods is larger than the outer diameter of the temperature measuring cable and smaller than the outer diameter of the balancing weight, and the hook rods are further connected with the first base block through reset springs so that the ends of the hook rods can abut against the second base block through the reset springs. According to the utility model, the bottom of the temperature measuring cable is supported by stable fulcrums, so that the distribution uniformity of temperature measuring points is ensured, and the temperature measuring cable has a long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent granary equipment, in particular to a multi-point temperature detection system for a flat granary with a stable fulcrum. Background Art

[0002] Grain temperature in flat warehouses is typically monitored using temperature measuring cables. These cables are equipped with multiple temperature sensors. Thermistors in these sensors produce changes in resistance as temperature changes, causing corresponding changes in the current signal output by the temperature measuring cables, thereby achieving temperature measurement. Typically, the temperature measuring cables are inserted into the grain pile by a human operator using a sampler. Due to the large size of flat warehouses and the numerous temperature measurement points, laying the temperature measuring cables can be complex.

[0003] In order to solve the above technical problems, the applicant proposed a multi-point temperature detection system for flat warehouses in CN202322703642.5, which can release the lower end of the temperature measuring cable to a position close to the upper edge of the hanging ring through a roller, and then the hook is pulled up by a person and inserted into the hanging ring. After the person lets go, the spring resets and the hanging ring is hooked with the hook, thereby avoiding the temperature measuring cable from being unhooked due to the squeezing of grain particles during the grain feeding process, and causing the temperature measuring cable to be squeezed to tilt, resulting in uneven distribution of temperature measuring points on the temperature measuring cable. In addition, the laying process of the temperature measuring cable is convenient and quick. However, in this technical solution, the hook system located at the bottom of the chamber has an open hook mouth. After being subjected to the lateral impact of grain particles during the feeding and discharging process, the hanging ring at the bottom of the temperature measuring cable may fall out of the hook mouth, causing the temperature measuring cable to tilt under the lateral impact of grain particles, further resulting in the temperature measuring points not being distributed according to the design requirements; on the other hand, the hook system is vertically distributed as a whole, and is easily deformed by the lateral impact of grain particles during the feeding and discharging process, thereby reducing its own service life. Utility Model Content

[0004] The utility model aims to provide a multi-point temperature detection system for a flat warehouse with a stable fulcrum. By providing a stable fulcrum support for the bottom of the temperature measuring cable, the uniformity of the distribution of the temperature measuring points is guaranteed, and the system has a long service life.

[0005] In order to solve the above technical problems, the specific solution adopted by the utility model is: a multi-point temperature detection system for a flat warehouse with a stable fulcrum, including a temperature measuring cable, the upper end of the temperature measuring cable is wound on a roller arranged on the warehouse beam of the flat warehouse, the lower end of the temperature measuring cable is provided with a counterweight block, and a hook for hooking the lower end of the temperature measuring cable is provided on the warehouse floor of the flat warehouse, the outer diameter of the counterweight block is larger than the outer diameter of the temperature measuring cable, the hook includes a first base block and a second base block distributed at intervals, and a hooking position for hooking the lower end of the temperature measuring cable is formed between the first base block and the second base block, two hook rods are slidably provided on the first base block, the spacing between the two hook rods is larger than the outer diameter of the temperature measuring cable and smaller than the outer diameter of the counterweight block, and the hook rod is also connected to the first base block through a reset spring so that the end of the hook rod can be pressed against the second base block through the reset spring.

[0006] Preferably, the first base block is provided with a through hole for the corresponding hook rod to pass through, and the end of the hook rod opposite to the second base block passes through the first base block and is connected to the same holding rod.

[0007] Preferably, the return spring is sleeved on the hook rod and located between the holding rod and the side edge of the first base block, and both ends of the return spring are fixed to the holding rod and the first base block respectively.

[0008] Preferably, the through hole has small diameter sections distributed at both ends and a large diameter section located in the middle, the small diameter section fits tightly against the outer edge of the hook rod, the return spring is sleeved on the part of the hook rod located in the large diameter section, and a spring seat is also provided on the part of the hook rod located in the large diameter section, and the two ends of the return spring respectively contact and fit with the spring seat and the steps at the corresponding positions of the large diameter section and the small diameter section.

[0009] Preferably, the second base block is provided with a groove for the end of the hook rod to be inserted.

[0010] Preferably, the end of the hook rod close to the second base block is semicircular, and the groove is a corresponding semicircular.

[0011] Preferably, the first base block and the second base block are both provided with flange edges for connecting to the floor of the chamber.

[0012] Preferably, the counterweight is cylindrical.

[0013] Beneficial effects

[0014] In the utility model, a closed hook is formed by the hook rod, the first base, the second base and the warehouse floor. After the lower end of the temperature measuring cable is hooked through the hook, a stable fulcrum is formed for the lower end of the temperature measuring cable, so that it can resist the impact of grain particles in any direction, ensuring that the temperature measuring cable is roughly distributed vertically, thereby ensuring that the temperature sensors on the temperature measuring cable can be distributed more evenly according to design requirements.

[0015] The hook of this utility model is arranged horizontally rather than vertically, which helps to resist the lateral impact of grain on the hook during feeding or unloading, making the hook less likely to deform and having a longer service life. In a preferred embodiment, the hook rod is mostly hidden in the first base block, with only a small portion exposed to withstand the vertical pressure of the grain pile, which also helps to resist deformation and extend the service life.

[0016] The present invention has two hook rods. The gap between the two hook rods cooperates with the counterweight block with a larger outer diameter to form a hooking effect. There is no need to set a hooking ring on the counterweight block as in the technical solution of the prior application mentioned in the background technology, which makes the structure of the present invention simpler and easier to implement. At the same time, the hook rod in the present application is connected to the first base block via a reset spring. The hooking process only requires pulling the hook rod to release the hooking position, placing the counterweight block in the hooking position, and then letting go. Even if the hook rod automatically closes the hooking position under the thrust of the reset spring, the operation is still very convenient and fast, facilitating the rapid laying of the temperature measurement cable in the entire warehouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the hook and the lower end of the temperature measuring cable hooked to the turntable in Example 1 of the present utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the top view structure;

[0019] Figure 3 This is a schematic diagram of the main structure of the hook and the lower end of the temperature measuring cable hooked to the turntable in Example 2 of the present utility model;

[0020] Markings in the figure: 1, second base block, 2, groove, 3, temperature measuring cable, 4, hook rod, 5, through hole, 501, large diameter section, 502, small diameter section, 6, return spring, 7, holding rod, 8, chamber floor, 9, first base block, 10, counterweight, 11, flange edge, 12, spring seat. DETAILED DESCRIPTION

[0021] The present invention is similar to the prior application CN202322703642.5 in that both use a temperature measuring cable 3 to measure the temperature of the grain pile in the bunkhouse. Both use a roller driven by a driving mechanism on the bunkhouse beam. The roller fixes the upper end of the temperature measuring cable 3 and allows the temperature measuring cable 3 to be wound around it, so that the lower end of the temperature measuring cable 3 can move from top to bottom to the bunkhouse floor 8, or move from bottom to top to the roller for retraction. Both use a hook on the bunkhouse floor 8 for the lower end of the temperature measuring cable 3 to be hooked. Unlike the patent, the hook provided by the present invention provides stronger hanging stability and a longer service life. Therefore, the following is a detailed description of the hook through two embodiments:

[0022] Example 1

[0023] like Figure 1 and Figure 2 As shown, the hook in this embodiment includes a first base block 9 and a second base block 1 that are spaced apart on the left and right and are rectangular. Flange edges 11 are provided at the edges of both, and bolt holes are provided on the flange edges 11 to firmly fix the first base block 9 and the second base block 1 on the warehouse floor 8 through expansion bolts, and a hooking position for hooking the lower end of the temperature measuring cable 3 is formed between the first base block 9 and the second base block 1.

[0024] Two parallel through holes 5 are provided on the first base block 9 in the horizontal direction. Hook rods 4 are slidably provided in the two through holes 5. The distance between the two hook rods 4 is larger than the outer diameter of the temperature measuring cable 3 but smaller than the outer diameter of the circular counterweight 10, so that Figure 1 and Figure 2 In the shown state, a closed clamping cavity is enclosed by the right side of the first base block 9, the left side of the second base block 1, the lower edges of the two hook rods 4 and the upper edge of the chamber floor 8, and the counterweight 10 is clamped in the clamping cavity, so that the temperature measuring cable 3 can pass through the gap between the two hook rods 4, thereby realizing the hooking of the lower end of the temperature measuring cable 3.

[0025] After the left ends of the two hook rods 4 pass through the first base block 9, they are connected to the same holding rod 7, so that people can hold and pull the hook rod 4 to retract the right ends of the two hook rods 4 into the through hole 5 of the first base block 9. After completely clearing the hooking position, the person places the lower end of the temperature measuring cable 3 into the hooking position, and then pushes the holding rod 7 to the right with the two hook rods 4 distributed on both sides of the temperature measuring cable 3. After the right end of the hook rod 4 touches the second base block 1, the hooking and fixation of the lower end of the temperature measuring cable 3 is completed. In order to facilitate operation and maintain the hook connection of the lower end of the temperature measuring cable 3, a reset spring 6 is also provided on the part of the hook rod 4 located between the holding rod 7 and the left side of the first base block 9. The two ends of the reset spring 6 are respectively fixed between the holding rod 7 and the left side of the first base block 9, so that after the lower end of the temperature measuring cable 3 enters the hooking position, the personnel releases the holding tube, so that the hook rod 4 automatically moves to the right to touch the second base block 1, and this state is maintained by the thrust of the reset spring 6, thereby ensuring the hooking effect on the lower end of the temperature measuring cable 3.

[0026] In addition, a groove 2 for accommodating the right end of the hook rod 4 is provided on the left side of the second base block 1. Through the groove 2, the food particles in the chamber are not directly pressed down on the right end of the hook rod 4, effectively avoiding the compression deformation of the hook rod 4 and improving its service life.

[0027] Example 2

[0028] like Figure 3As shown, this embodiment is basically the same as the embodiment 1, the only difference is that in the hooked state, the hook rod 4 is only exposed at the first base block 9 and the second base block 1, so that the pressure of the grain pile is further reduced on the hook rod 4, further reducing its deformation and increasing its service life, in order to achieve the above technical effects:

[0029] On one hand, the through-hole 5 in the first base block 9 comprises a large-diameter section 501 in the center and small-diameter sections 502 at either end. The inner diameter of the small-diameter section 502 matches the outer diameter of the hook rod 4, and the two sections fit snugly and support the hook rod 4. The inner diameter of the large-diameter section 501 is larger than the outer diameter of the hook cover. A return spring 6 is sleeved on the portion of the hook rod 4 located within the large-diameter section 501. The left end of the return spring 6 contacts the step at the boundary between the large-diameter section 501 and the small-diameter section 502 on the left side, while the right end contacts the spring seat 12 fixed to the hook rod 4. The return spring 6 is compressed, with its right end contacting the second base block 1. Pulling the gripping rod 7 leftward, causing the hook rod 4 to move leftward to clear the hooking position, further compresses the return spring 6. After the lower end of the temperature measuring cable 3 is placed in the hooking position, releasing the gripping rod 7 causes the return spring 6 to move the hook rod 4 rightward, closing the hooking position.

[0030] On the other hand, the right end of the hook rod 4 is semicircular, and the groove 2 on the second base block 1 for the right end of the hook rod 4 to be inserted is a semicircular with the same inner diameter, so that Figure 3 In the state shown, the right end of the hook rod 4 is tightly fitted to the inner wall of the groove 2, and the inner wall of the groove 2 forms an all-round support for the right end of the hook rod 4, thereby further improving the anti-deformation ability of the hook rod 4 and further improving its service life.

Claims

1. A multi-point temperature detection system for a bunk warehouse with a stable fulcrum, comprising a temperature measuring cable (3), the upper end of the temperature measuring cable (3) being wound around a roller provided on a bunk beam of the bunk warehouse, a counterweight (10) being provided at the lower end of the temperature measuring cable (3), and a hook for hooking the lower end of the temperature measuring cable (3) on the floor (8) of the bunk warehouse, characterized in that: The outer diameter of the counterweight block (10) is larger than the outer diameter of the temperature measuring cable (3); the hook comprises a first base block (9) and a second base block (1) which are spaced apart; a hooking position for hooking the lower end of the temperature measuring cable (3) is formed between the first base block (9) and the second base block (1); two hook rods (4) are slidably provided on the first base block (9); the spacing between the two hook rods (4) is larger than the outer diameter of the temperature measuring cable (3) and smaller than the outer diameter of the counterweight block (10); the hook rod (4) is also connected to the first base block (9) via a reset spring (6) so that the end of the hook rod (4) is pressed against the second base block (1) via the reset spring (6).

2. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 1, characterized in that: The first base block (9) is provided with a through hole (5) for the corresponding hook rod (4) to pass through. The end of the hook rod (4) opposite to the second base block (1) passes through the first base block (9) and is connected to the same holding rod (7).

3. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 2, characterized in that: The reset spring (6) is sleeved on the hook rod (4) and located between the gripping rod (7) and the side edge of the first base block (9). The two ends of the reset spring (6) are respectively fixed to the gripping rod (7) and the first base block (9).

4. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 2, characterized in that: The through hole (5) has small diameter sections (502) distributed at both ends and a large diameter section (501) located in the middle. The small diameter section (502) is tightly fitted with the outer edge of the hook rod (4). The return spring (6) is sleeved on the portion of the hook rod (4) located in the large diameter section (501). The portion of the hook rod (4) located in the large diameter section (501) is also provided with a spring seat (12). The two ends of the return spring (6) are respectively in contact with the spring seat (12) and the steps at the corresponding positions of the large diameter section (501) and the small diameter section (502).

5. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 1, characterized in that: The second base block (1) is provided with a groove (2) for the end of the hook rod (4) to be inserted.

6. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 5, characterized in that: The end portion of the hook rod (4) close to the second base block (1) is semicircular, and the groove (2) is a corresponding semicircular.

7. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 1, characterized in that: The first base block (9) and the second base block (1) are both provided with flange edges (11) for connecting with the chamber floor (8).

8. The multi-point temperature detection system for a flat warehouse with a stable support point according to claim 1, characterized in that: The counterweight (10) is cylindrical.

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