Novel explosion-proof operation column

Abstract

A novel explosion-proof operation column comprises an explosion-proof operation column body and a box body sleeved outside the explosion-proof operation column body, and is characterized in that one side of the box body is opened and is provided with a box door in a matched manner, the box body is provided with a slot corresponding to the box door, the box door is matched with the slot in an inserted manner, the box body is provided with a chute corresponding to the box door, one side of the box door penetrates through the chute, and the other side of the box door penetrates through the chute. A first rack is fixedly installed, an annular plate is arranged below the first rack, an avoiding groove is formed in one side of the annular plate, the annular plate is connected with the first rack through a transmission mechanism, the annular plate can drive the first rack to move upwards or downwards through the transmission mechanism, and a plurality of springs are fixedly installed at the bottom of the annular plate. The explosion-proof operation column is simple in structure and ingenious in conception, the explosion-proof operation column body is isolated from the external environment through the box body arranged outside the explosion-proof operation column body, the influence of the external environment on the explosion-proof operation column body is reduced, the box door can be opened by treading the annular plate, operation is easy and convenient, actual requirements can be met, and the explosion-proof operation column is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the field of explosion-proof equipment, in particular to a novel explosion-proof operating column. Background Art

[0002] With the rapid development of industries such as petroleum, chemical, and mining, the explosion-proof operating column is a flexible control system that can provide customers with standard or special body control units or display units. It is suitable for explosive gas environments and combustible dust environments, and is increasingly used in production, warehousing, and rescue. Existing explosion-proof operating columns are generally exposed to the external environment. Due to the high dust content in the production workshop, it is easy to affect the buttons on the explosion-proof operating column and affect the operation. Therefore, we have designed a new type of explosion-proof operating column. Utility Model Content

[0003] The utility model provides a novel explosion-proof operating column to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A novel explosion-proof operating column comprises an explosion-proof operating column body, the exterior of which is covered with a box body, and is characterized in that: one side of the box body is open and is provided with a box door, a slot is provided on the box body corresponding to the box door, the box door is plugged into the slot, a slide groove is provided on the box body corresponding to the box door, one side of the box door passes through the slide groove, and a first rack is fixedly installed, an annular plate is provided below the first rack, an avoidance groove is provided on one side of the annular plate, the annular plate is connected to the first rack through a transmission mechanism, the annular plate can drive the first rack to move upward or downward through the transmission mechanism, and a plurality of springs are fixedly installed on the bottom of the annular plate, and one end of the spring is in contact with the ground.

[0006] As described above, a new type of explosion-proof operating column, the box body is divided into left and right halves, the two parts of the box body are rotatably connected together by a hinge shaft, a sleeve is fixedly installed on the bottom of the box body, the sleeve is also divided into left and right parts and corresponds to the two parts of the box body one by one, flanges are respectively provided on the two parts of the sleeve, the flanges on the two parts of the sleeve are connected together by bolts, and the inner periphery of the sleeve is tightly fitted with the column on the explosion-proof operating column body.

[0007] In the novel explosion-proof operating column as described above, a sealing member is fixedly installed in the casing.

[0008] A new type of explosion-proof operating column as described above, the transmission mechanism includes a support shaft, the support shaft is fixedly mounted on the sleeve, a large gear is rotatably mounted on the support shaft, a small gear is fixedly mounted on the large gear, the large gear is meshed with the first rack, a second rack is meshed on one side of the small gear, and the second rack is fixedly mounted on the annular plate.

[0009] In the novel explosion-proof operating column as described above, a stopper is slidably installed on one side of the box opening, and a lever is fixedly installed on the stopper.

[0010] In the novel explosion-proof operating column as described above, a pressure plate is installed in the box body through a plurality of shock-absorbing springs, and a plurality of pressure plates are provided, and the pressure plate is in contact with the explosion-proof operating column body.

[0011] The advantages of the utility model are: the utility model has a simple structure and an ingenious design. The explosion-proof operating column body is isolated from the external environment by a box body arranged outside the explosion-proof operating column body, reducing the influence of the external environment on the explosion-proof operating column body, and the box door can be opened by stepping on the annular plate. The operation is simple and convenient, which can meet actual needs and is suitable for promotion. When using the utility model, the box body is installed on the explosion-proof operating column body so that the lower side of the spring is against the ground. When the box door needs to be opened, the annular plate is stepped on downward, and the first rack is driven downward by the transmission mechanism, and the first rack drives the box door to slide downward along the slot and the slide groove, and the box door is opened, and the explosion-proof operating column body can be operated; when the annular plate is no longer stepped on, the annular plate is automatically reset under the action of the spring, and the transmission of the transmission mechanism drives the first rack and the box door to reset, so that the box door is plugged into the slot again to form a seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 yes Figure 1 A-direction view; Figure 3 It is a structural schematic diagram of the annular plate.

[0014] Figure numerals: 1. explosion-proof operating column body, 2. box body, 3. box door, 4. slot, 5. slide groove, 6. first rack, 7. annular plate, 8. spring, 9. avoidance groove, 20. sleeve, 21. flange, 22. bolt, 30. seal, 40. support shaft, 41. large gear, 42. small gear, 43. second rack, 50. block, 51. limiting ring, 52. lever, 60. shock-absorbing spring, 61. pressure plate. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] A new type of explosion-proof operating column, such as Figure 1 , 2 As shown in , 3, it includes an explosion-proof operating column body 1, and the outside of the explosion-proof operating column body 1 is sheathed with a box body 2, which is characterized in that: one side of the box body 2 is open and is equipped with a box door 3, a slot 4 is provided on the box body 2 corresponding to the box door 3, the box door 3 is plugged into the slot 4, the slot 4 is U-shaped, the front side, the top side and the rear side of the box door 3 are respectively plugged into the side corresponding to the slot 4, a slide groove 5 is provided on the box body 2 corresponding to the box door 3, one side of the box door 3 passes through the slide groove 5, and a first rack 6 is fixedly installed, an annular plate 7 is provided below the first rack 6, and an avoidance groove 9 is provided on one side of the annular plate 7, the annular plate 7 is connected to the first rack 6 through a transmission mechanism, the annular plate 7 can drive the first rack 6 to move upward or downward through the transmission mechanism, and a plurality of springs 8 are fixedly installed on the bottom of the annular plate 7, one end of the spring 8 is in contact with the ground, and the other end of the spring 8 is fixedly connected to the annular plate 7. The utility model has a simple structure and an ingenious design. The explosion-proof operating column body 1 is isolated from the external environment by the box body 2 arranged outside the explosion-proof operating column body 1, reducing the influence of the external environment on the explosion-proof operating column body 1, and the box door 3 can be opened by stepping on the annular plate 7. The operation is simple and convenient, which can meet actual needs and is suitable for promotion. When using the utility model, the box body 2 is installed on the explosion-proof operating column body 1, so that the lower side of the spring 8 is against the ground. When the box door 3 needs to be opened, the annular plate 7 is stepped on downward, and the first rack 6 is driven downward by the transmission mechanism, and the first rack 6 drives the box door 3 to slide downward along the slot 4 and the slide 5, and the box door 3 is opened, and the explosion-proof operating column body 1 can be operated; when the annular plate 7 is no longer stepped on, the annular plate 7 is automatically reset under the action of the spring 8, and the transmission of the transmission mechanism drives the first rack 6 and the box door 3 to reset, so that the box door 2 is plugged and matched with the slot 4 again to form a seal.

[0017] Specifically, as shown in the figure, the box body 2 described in this embodiment is divided into two halves, the two halves of the box body 2 are connected together by a hinge shaft, a sleeve 20 is fixedly installed at the bottom of the box body 2, the sleeve 20 and the box body 2 are an integral structure, the sleeve 20 is also divided into two halves, and the two halves correspond to the two halves of the box body 2 one by one, and flanges 21 are respectively provided on the two halves of the sleeve 20, and the flanges 21 on the two halves of the sleeve 20 are connected together by bolts 22, and the inner periphery of the sleeve 20 is tightly fitted with the column on the explosion-proof operating column body 1. The two halves of the box body 2 are hinged together, which is convenient for installation outside the explosion-proof operating column body 1, realizing the detachable function of the device, and facilitating installation and replacement; during installation, the two halves of the box body 2 are rotated, and the two halves are put on the explosion-proof operating column body 1, and then the flanges 21 are connected together with bolts 22 to complete the installation.

[0018] Specifically, as shown in the figure, the sealing member 30 is fixedly installed in the sleeve 20 of this embodiment, and the sealing member 30 is also divided into two parts. The sealing member 30 can increase the sealing performance between the sleeve 20 and the explosion-proof operating column body 1, and can also increase the friction force to prevent the box body 2 and the sleeve 20 from sliding.

[0019] Further, as shown in the figure, the transmission mechanism described in this embodiment includes a support shaft 40, which is fixedly mounted on the sleeve 20, a large gear 41 is rotatably mounted on the support shaft 40, a small gear 42 is fixedly mounted on the large gear 41, the support shaft 40, the large gear 41, and the small gear 42 are coaxially arranged, the small gear 42 is rotatably connected to the support shaft 40 through a bearing, the large gear 41 is meshed with the first rack 6, and a second rack 43 is meshed on one side of the small gear 42, the second rack 43 is fixedly mounted on the annular plate 7, a slip ring 44 is slidably mounted on the second rack 43, and the slip ring 44 is fixedly mounted on the box body 2 through a connecting rod to increase stability. When the annular plate 7 is stepped on downward, the spring 8 is compressed, and the annular plate 7 drives the second rack 43 to move downward, and then drives the large gear 41 to rotate through the transmission of the small gear 42, and finally drives the first rack 6 to move downward; when the annular plate 7 is no longer stepped on, the annular plate 7 automatically resets under the action of the spring 8, thereby driving the second rack 43, the small gear 42, the large gear 41, and the first rack 6 to reset; since the diameter of the large gear 41 is larger than the diameter of the small gear 42, the linear velocity of the large gear 41 is greater than the linear velocity of the small gear 42, that is, when rotating at the same angle, the distance moved by the point on the circumference of the large gear 41 is greater than the distance moved by the point on the circumference of the small gear 42, so the second rack 43 moving a shorter distance can drive the first rack 6 to move a larger distance.

[0020] Furthermore, as shown in the figure, a stopper 50 is slidably installed on one side of the opening of the box body 2 in this embodiment, and a plurality of limit rings 51 are fixedly installed on the inner wall of the box body 2. The stopper 50 is slidably connected to the inner circumference of the limit ring 51, and a lever 52 is fixedly installed on the stopper 50. When the box door 3 moves downward to open, the stopper 50 is pulled to the right to block the top side of the box door 3 to prevent it from automatically resetting, so as to operate the explosion-proof operating column body 1; moving the stopper 50 by the lever 52 is more convenient and labor-saving.

[0021] Furthermore, as shown in the figure, a pressure plate 61 is installed in the box body 2 of this embodiment through several shock-absorbing springs 60, and several pressure plates 61 are provided. One end of the shock-absorbing spring 60 is fixedly connected to the inner wall of the top side of the box body 2, and the other end of the shock-absorbing spring 60 is fixedly connected to the corresponding pressure plate 61, and the pressure plate 61 is in contact with the explosion-proof operating column body 1. The shock-absorbing spring 60 gives the box body 2 an upward force, which can prevent the box body 2 from sliding downward, and can also play a role in shock absorption, making the device more stable and increasing the practicality of the device.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A novel explosion-proof operating column, comprising an explosion-proof operating column body (1), the outer portion of which is sheathed with a box body (2), characterized in that: One side of the box body (2) is open and is provided with a box door (3). A slot (4) is provided on the box body (2) corresponding to the box door (3). The box door (3) is plugged into the slot (4). A slide groove (5) is provided on the box body (2) corresponding to the box door (3). One side of the box door (3) passes through the slide groove (5) and is fixedly installed with a first rack (6). An annular plate (7) is provided below the first rack (6). One side of the annular plate (7) is provided with an avoidance groove (9). The annular plate (7) is connected to the first rack (6) through a transmission mechanism. The annular plate (7) can drive the first rack (6) to move upward or downward through the transmission mechanism. A plurality of springs (8) are fixedly installed at the bottom of the annular plate (7). One end of the spring (8) is in contact with the ground.

2. A novel explosion-proof operating column according to claim 1, characterized in that: The box body (2) is divided into two halves, the left and right halves, the two halves of the box body (2) are rotatably connected together via a hinge shaft, a sleeve (20) is fixedly installed at the bottom of the box body (2), the sleeve (20) is also divided into two halves, and the two halves correspond to the two halves of the box body (2) one by one, flanges (21) are respectively provided on the two halves of the sleeve (20), the flanges (21) on the two halves of the sleeve (20) are connected together via bolts (22), and the inner periphery of the sleeve (20) is tightly fitted with a column on the explosion-proof operating column body (1).

3. A novel explosion-proof operating column according to claim 2, characterized in that: A sealing member (30) is fixedly installed in the sleeve (20).

4. A novel explosion-proof operating column according to claim 2, characterized in that: The transmission mechanism comprises a support shaft (40), the support shaft (40) is fixedly mounted on the sleeve (20), a large gear (41) is rotatably mounted on the support shaft (40), a small gear (42) is fixedly mounted on the large gear (41), the large gear (41) is meshed with a first rack (6), a second rack (43) is meshed on one side of the small gear (42), and the second rack (43) is fixedly mounted on the annular plate (7).

5. A novel explosion-proof operating column according to claim 1, characterized in that: A stopper (50) is slidably mounted on one side of the opening of the box body (2), and a shifting rod (52) is fixedly mounted on the stopper (50).

6. A novel explosion-proof operating column according to claim 1, characterized in that: A pressure plate (61) is installed in the box body (2) via a plurality of shock-absorbing springs (60). A plurality of pressure plates (61) are provided, and the pressure plates (61) are in abutment, contact and cooperation with the explosion-proof operating column body (1).

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