Tank cabin door key

Abstract

The utility model discloses a tank cabin door key which comprises a handle part and an inserting part. The handle part comprises a connecting rod and a connecting block connected to one end of the connecting rod, and the connecting block is located on one side of the connecting rod in the direction perpendicular to the extending direction of the connecting rod and protrudes out of the side wall of the connecting rod. The inserting part comprises an inserting rod extending into the key hole and a key insection connected with the inserting rod, the key insection is located at the end, extending into the key hole, of the inserting rod, a tooth groove embedded with the key insection is formed in the inner end face of the key hole, the other end of the inserting rod is exposed out of the key hole, and an inserting hole clamped and matched with the connecting block is formed in the axis of the inserting rod; the tank cabin door key can adapt to various types of tanks, normal opening of each tank cabin door can be guaranteed, and the adaptability of the whole tank cabin door key is high.

Description

Technical Field

[0001] The utility model relates to the technical field of military equipment, in particular to a key for a tank hatch door. Background Art

[0002] In the prior art, an "L"-shaped wrench is used as the key for the tank hatch door. Whether opening or closing the hatch door, the "L"-shaped wrench needs to be rotated for a long time. Limited by the inherent structural design of the tank, when using this wrench, it is necessary to constantly pick up the wrench, change the direction and then insert it for use. Such picking up and putting down makes the operation of opening and closing the door more time-consuming, which is extremely disadvantageous for the application of the tank on the battlefield. Content of the Utility Model

[0003] The purpose of the utility model is to provide a key for a tank hatch door to solve the problems existing in the prior art, which can be adapted to various types of tanks and ensure the normal opening of each tank hatch door, so that the adaptability of the entire key for the tank hatch door is strong.

[0004] To achieve the above purpose, the utility model provides the following solution: The utility model provides a key for a tank hatch door, including a handle part and a plugging part;

[0005] The handle part includes a connecting rod and a connecting block connected to one end of the connecting rod. The connecting block is located on one side of the connecting rod along the direction perpendicular to the extension of the connecting rod and protrudes from the side wall of the connecting rod;

[0006] The plugging part includes a plug rod extending into the keyhole and key tooth patterns connected to the plug rod. The key tooth patterns are located at one end of the plug rod extending into the keyhole. A tooth groove engaged with the key tooth patterns is formed on the inner end surface of the keyhole. The other end of the plug rod exposes out of the keyhole, and a jack engaged with the connecting block is formed at the axis center thereof.

[0007] Preferably, the plugging part is equipped with a ratchet wrench. The connecting rod is the wrench rod of the ratchet wrench, and the connecting block is the chuck on the wrench head of the ratchet wrench.

[0008] Preferably, a turning knob for changing the rotation direction of the chuck is arranged on one side of the wrench head opposite to the chuck.

[0009] Preferably, a positioning ring with a flexible structure is coaxially and tightly sleeved on the plug rod, and the outer peripheral wall of the positioning ring is coaxially abutted against the inner peripheral wall of the keyhole.

[0010] Preferably, the positioning ring is of a rubber ring structure.

[0011] Preferably, both the chuck and the jack are of a multi-prismatic structure, and the radial cross-sections of the chuck and the jack are matched.

[0012] Preferably, the key tooth pattern is coaxially arranged with the insertion rod, the key tooth pattern extends along the radial direction of the insertion rod, and both ends of the key tooth pattern protrude from the outer peripheral wall of the insertion rod.

[0013] Preferably, the end face of the insertion rod exposed from the keyhole is flush with the outer end face of the keyhole.

[0014] The utility model has achieved the following technical effects compared with the prior art:

[0015] Since the connecting block on the connecting rod and the jack on the insertion rod are detachable structures, according to the differences in the keyholes supporting the tank hatch doors, the same handle part can be matched with multiple plugging parts. Such a connection method can be adapted to various types of tanks and can ensure the normal opening of each tank hatch door, making the adaptability of the entire tank hatch door key strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a front view of the handle part of the present utility model;

[0018] Figure 2 It is a side view of the handle part of the present utility model;

[0019] Figure 3 It is a structural view of the plugging part of the present utility model;

[0020] Among them, 1 - wrench rod, 2 - wrench head, 3 - knob, 4 - chuck, 5 - jack, 6 - positioning ring, 7 - key tooth pattern, 8 - insertion rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0022] The purpose of the utility model is to provide a tank hatch key to solve the problems existing in the prior art, which can be adapted to various types of tanks and can ensure the normal opening of each tank hatch, so that the adaptability of the entire tank hatch key is strong.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figures 1 to 3 As shown, this embodiment provides a tank hatch key, including a handle portion and a plug-in portion;

[0025] The handle portion includes a connecting rod and a connecting block connected to one end of the connecting rod, the connecting block is located on one side of the connecting rod in a direction perpendicular to the extending direction of the connecting rod and protrudes from the side wall of the connecting rod; the design of the preferred connecting rod is ergonomic, has a large rotational torque, is easy to operate, and can be easily and quickly rotated in the corresponding direction;

[0026] The plug-in part includes a plug rod 8 inserted into the keyhole and a key tooth pattern 7 connected to the plug rod 8. The key tooth pattern 7 is located at one end of the plug rod 8 inserted into the keyhole. A tooth groove engaged with the key tooth pattern 7 is provided on the inner end surface of the keyhole. The other end of the plug rod 8 is exposed from the keyhole, and a socket 5 engaged with the connection block is provided at its axis. When the tank hatch needs to be opened, the connection block is aligned with the socket 5 by holding the connecting rod and inserted into the socket 5, and then the connecting rod is rotated, so that the connecting rod drives the connecting block, the socket 5 and the plug rod 8 to rotate, and synchronously drives the key tooth pattern 7 to rotate, so that the key tooth pattern 7 rotates the tooth groove of the inner end surface of the keyhole to complete the opening of the tank hatch. Since the connection block on the connecting rod and the socket 5 on the plug rod 8 are detachable structures, the same handle can be equipped with multiple plug-in parts according to the different keyholes matched with the tank hatch. Such a connection method can be adapted to various types of tanks and can ensure the normal opening of each tank hatch, so that the adaptability of the entire tank hatch key is strong.

[0027] As a preferred embodiment of the utility model, the plug-in part is equipped with a ratchet wrench, the connecting rod is the wrench rod 1 of the ratchet wrench, and the connecting block is the chuck 4 on the wrench head 2 of the ratchet wrench. It should be noted that the L-shaped wrench in the prior art needs to be lifted up to adjust the direction after rotating half a circle, and the lifting and putting action wastes a lot of time. The utility model adopts the ratchet wrench as the handle, which only needs to be rotated back and forth, which not only saves the time wasted in picking up and putting down the L-shaped wrench, but also makes opening and closing the hatch less laborious, and completes the operation of opening and closing the hatch in a time-saving and labor-saving manner, thereby improving the efficiency of opening the tank hatch and gaining an advantage for the use of tanks on the battlefield.

[0028] Further, a knob for changing the rotation direction of the chuck 4 is provided on the side of the wrench head 2 opposite to the chuck 4. By means of the knob, the unidirectional rotation of the chuck 4 is changed, thereby driving the rotation of the insertion part. Different rotation directions of the knob 3 determine the rotation direction of the insertion part, achieving the purpose of opening and closing the hatch.

[0029] Further, a positioning ring 6 with a flexible structure is coaxially and tightly sleeved on the insertion rod 8, and the outer peripheral wall of the positioning ring 6 is coaxially abutted against the inner peripheral wall of the keyhole. On the one hand, by providing the positioning ring 6, it is possible to cope with keyholes of different apertures on different types of tanks. The positioning ring 6 is sleeved on the insertion rod 8 so that it can adapt to the corresponding keyhole aperture, playing a fixing role, thereby increasing the adaptation range. On the other hand, in the direction of the central axis of the rotation of the insertion rod 8, due to the presence of the positioning ring 6, the insertion rod 8 can be stabilized in the keyhole, ensuring that the insertion rod 8 does not shake when turning the key handle, avoiding the situation in the prior art that there is no fixing object in the direction of the rotation axis of the key end of the L-shaped wrench, so manual control is required to apply force in the direction of the rotation axis of the key end during the rotation process to prevent it from tilting and causing the key to fall off, resulting in a reduction in work efficiency. Through the design of the positioning ring 6, the stability in the direction of the rotation axis of the insertion rod 8 can be satisfied, improving the safety of its use. Preferably, the positioning ring 6 is of a rubber ring structure for convenient material selection and reduced use cost.

[0030] Preferably, both the chuck 4 and the jack 5 are of a multi-prismatic structure, and the radial cross-sections of the chuck 4 and the jack 5 are matched to ensure that after the chuck 4 and the jack 5 are inserted and matched, they can rotate stably and synchronously, avoiding the situation that when they are both circular structures, it is easy to have asynchronous rotation.

[0031] Further, the key tooth pattern 7 is coaxially arranged with the insertion rod 8, the key tooth pattern 7 extends along the radial direction of the insertion rod 8, and both ends of the key tooth pattern 7 protrude from the outer peripheral wall of the insertion rod 8. Only by connecting the card lumps to fit the tooth grooves can the hatch be effectively rotated and opened, without the need for the entire insertion rod 8 to be adapted to the tooth grooves, reducing the manufacturing difficulty. Moreover, through the structural design of the key tooth pattern 7, the positioning ring 6 can be limited on the insertion rod 8, preventing it from detaching from the insertion rod 8 and affecting the rotation.

[0032] And as a specific implementation manner, the keyholes of different tanks and the structures of their matching insertion rods 8 are basically matched. Therefore, the insertion rod 8 can be limited by the positioning ring 6. The positioning ring 6 can be limited on the insertion rod 8 to prevent the insertion rod from shaking during the opening process. Since the tooth grooves of the keyholes of different tanks are different and the key tooth pattern 7 is adapted to the tooth grooves, only the key tooth pattern 7 needs to be modified for the design of different tank holes, reducing the manufacturing difficulty.

[0033] Moreover, the end face of the insertion rod 8 exposed from the keyhole is flush with the outer end face of the keyhole, which can not only prevent the insertion rod 8 from being too long and protruding from the keyhole, affecting the rotation space of the handle part, but also enable the recognition chuck 4 to be aligned and clamped with the insertion hole 5.

[0034] Adaptations made according to actual requirements are within the protection scope of the present utility model.

[0035] It should be noted that for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] Specific examples are used in the present utility model to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A tank hatch key, characterized in that, It includes a handle part and a plug-in part; The handle part includes a connecting rod and a connecting block connected to one end of the connecting rod. The connecting block is located on one side of the connecting rod along a direction perpendicular to the extension of the connecting rod and protrudes from the side wall of the connecting rod; The plug-in part includes a plug rod extending into the keyhole and key tooth patterns connected to the plug rod. The key tooth patterns are located at one end of the plug rod extending into the keyhole. A tooth groove engaged with the key tooth patterns is formed on the inner end surface of the keyhole. The other end of the plug rod exposes out of the keyhole, and a jack engaged with the connecting block is formed at the axis center thereof; A ratchet wrench is provided for the plug-in part. The connecting rod is the wrench rod of the ratchet wrench, and the connecting block is the chuck on the wrench head of the ratchet wrench.

2. The tank hatch key according to claim 1, characterized in that A knob for changing the rotation direction of the chuck is provided on one side of the wrench head opposite to the chuck.

3. The tank hatch key according to claim 1 or 2, characterized in that, A positioning ring with a flexible structure is coaxially and tightly sleeved on the plug rod, and the outer peripheral wall of the positioning ring is coaxially abutted against the inner peripheral wall of the keyhole.

4. The tank hatch key according to claim 3, characterized in that, The positioning ring is of a rubber ring structure.

5. The tank hatch key according to claim 4, characterized in that, Both the chuck and the jack are of a multi-prismatic structure, and the radial cross-sections of the chuck and the jack are matched.

6. The tank hatch key according to claim 5, characterized in that, The key tooth patterns are coaxially arranged with the plug rod, the key tooth patterns extend along the radial direction of the plug rod, and both ends of the key tooth patterns protrude from the outer peripheral wall of the plug rod.

7. The tank hatch key according to claim 6, characterized in that, The end surface of the plug rod exposing out of the keyhole is flush with the outer end surface of the keyhole.

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