Projectile body in-out device

Abstract

The invention discloses a projectile body in-out device and relates to the technical field of projectile body charging, an in-out assembly of the device is installed on the ground of a charging area, the front end of the in-out assembly is located outside the charging area (a connecting station), the rear end of the in-out assembly is located in the charging area (the charging station), a connecting and fixing assembly is installed on the in-out assembly, and a cart assembly can move independently and freely. And the connecting and fixing assembly can also be connected and fixed. According to the device, automatic identification, butt joint and entering and exiting of the projectile body in the charging process are achieved, automatic charging is adapted, meanwhile, transferring is convenient, the traditional manual conveying mode is changed, the personnel participation degree and labor intensity in the charging process are greatly reduced, and safety risks are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of projectile charging, in particular to a projectile entry and exit device. Background Art

[0002] Casting explosives refer to mixed explosives that can be cast in a molten state. They are mainly composed of a mixture of several single high explosives, or with a small amount of additional components. Typical examples include TNT and RTX. TNT is a low melting point component, and its content should be able to ensure that the mixture has good fluidity and is easy to cast.

[0003] At present, the movement and transportation of projectiles in the process of charging cast explosives is mostly completed by "manual + auxiliary equipment". The projectile is manually fixed on the tooling, and the projectile is manually operated to transport the projectile to the charging area. The projectile is taken out and placed randomly in the charging area, and then manually charged. After the charge solidifies, the projectile is manually moved out of the charging area by operating the crane or cart.

[0004] It can be seen that the current charging process of melt-cast explosives is mainly based on manual operation, and the projectiles are mostly transported by "manual + cart" or "manual + crane" during the charging process, which leads to problems such as large number of personnel, high labor intensity, and random placement of projectiles. Summary of the invention

[0005] In view of the above problems, the present invention provides a projectile entry and exit device for overcoming the above problems or at least partially solving the above problems.

[0006] The present invention provides the following scheme:

[0007] A projectile entry and exit device, comprising:

[0008] An in-and-out assembly, the in-and-out assembly comprises a guide outer cover, a rodless cylinder, a linear guide rail, a slider and a connecting plate; the guide outer cover is fixedly mounted on the ground of the charging area, the rodless cylinder is mounted on the inner bottom of the guide outer cover, the linear guide rail is mounted on both sides of the inner wall of the guide outer cover, the connecting plate is connected with the linear guide rail through the slider; the connecting plate is connected with the rodless cylinder;

[0009] A cart assembly, the cart assembly comprising a cart frame, a cart plate, a fixing tool, a characterizing block mounting plate, a characterizing block, a bottom guide roller, a walking wheel assembly and a connecting seat, wherein the walking wheel assembly is connected to the cart frame; the cart plate is mounted on the cart frame, the fixing tool is mounted on the cart plate, the characterizing block mounting plate is mounted on the upper side of the front end of the cart plate, the characterizing block mounting plate is provided with a plurality of mounting holes, the characterizing block is mounted in any one of the plurality of mounting holes, the bottom guide roller is mounted below the cart frame, and the connecting seat is horizontally mounted just in front of the front end of the cart frame;

[0010] A connection and fixing assembly, the connection and fixing assembly comprising a support, a lifting cylinder, a latch shaft, two fixing seats, an identification and detection sensor and a buffer block; the support is mounted on the connecting plate, the lifting cylinder is mounted on the support, one end of the latch shaft is connected to the lifting cylinder, the other end of the latch shaft is supported in the fixing seat, the two fixing seats are respectively located on the inner side of the support and are installed up and down along the axis of the latch shaft, the identification and detection sensor is installed on the inner side of the support, and the buffer block is installed on the front plate of the support;

[0011] Among them, the front end of the entry and exit component is arranged outside the charging area, and the rear end of the entry and exit component is arranged in the charging area; the identification detection sensor is consistent with the number, position and spacing of several of the installation holes, and is used to identify the installation position of the characterization block so as to realize the identification of the projectile model; the fixing tool is used to fix the projectile to be loaded, and after the trolley component enters the entry and exit component under the action of external force, the connecting seat enters between the two fixing seats, so that the pin shaft passes through the connecting seat along the two fixing seats under the drive of the lifting cylinder, so that the trolley component and the connecting and fixing component form a temporary fixed connection.

[0012] Preferably, the linear guide rails and the sliding blocks are both in two sets, which are respectively installed on both sides of the inner wall of the guide outer cover.

[0013] Preferably, the fixing tool comprises two fixing blocks arranged opposite to each other, so as to fix the projectile to be charged with explosives by adopting a V-shaped clamping structure.

[0014] Preferably, a plurality of mounting positions are provided on the trolley plate so as to adjust the relative distance between the two fixing blocks and realize the fixing of the projectiles to be loaded with explosives of different diameters.

[0015] Preferably: the walking wheel assembly includes a fixed caster and a universal caster; the fixed caster is installed at two supporting corners at the front end of the bottom of the cart frame, and the universal caster is installed at two supporting corners at the rear end of the bottom of the cart frame.

[0016] Preferably: the universal caster has a braking function.

[0017] Preferably: the cart assembly further comprises a handle; the handle is mounted on the rear end of the cart frame.

[0018] Preferably, the bottom guide rollers include two groups, and the spacing between the bottom guide rollers decreases from wide to narrow along the forward direction, so as to cooperate with the guide outer cover to achieve the guiding and positioning function of the cart assembly.

[0019] Preferably, the characterization block comprises a plurality of holes whose number is the same as the number of the mounting holes, so that different models of the projectile can be characterized by different arrangements and combinations on the mounting plate of the characterization block.

[0020] Preferably: the connection and fixing assembly also includes an in-place detection sensor, the in-place detection sensor is installed on a sensor bracket, and the sensor bracket is installed on the connecting plate; after the in-place detection sensor is triggered, the lifting cylinder drives the pin shaft along the two fixing seats to pass through the connecting seat.

[0021] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0022] The embodiment of the present application provides a projectile entry and exit device, in which the entry and exit components are installed on the ground of the charging area, the front end is outside the charging area (connection station), and the rear end is in the charging area (charging station). The connection and fixing components are installed on the entry and exit components, and the cart components can be moved freely alone or connected and fixed with the connection and fixing components. The device realizes automatic identification, docking, entry and exit of projectiles during the charging process, adapts to automatic charging, and is convenient for transportation, which changes the traditional manual transportation method, greatly reduces the participation of personnel and labor intensity in the charging process, and reduces safety risks.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of a projectile entry and exit device provided by an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of an inlet and outlet assembly provided by an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a cart assembly provided by an embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of a connection and fixing assembly provided in an embodiment of the present invention.

[0029] In the figure: entry and exit component 1, guide outer cover 11, rodless cylinder 12, linear guide 13, slider 14, connecting plate 15, trolley component 2, trolley frame 21, trolley plate 22, fixed tooling 23, characterizing block mounting plate 24, characterizing block 25, bottom guide roller 26, fixed caster 27, universal caster 28, connecting seat 29, handle 210, connecting and fixing component 3, support 31, lifting cylinder 32, latch shaft 33, fixing seat 34, identification detection sensor 35, buffer block 36, in-position detection sensor 37, sensor bracket 38. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , is a projectile entry and exit device provided by an embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the device may include:

[0032] The in-and-out assembly 1 comprises a guide outer cover 11, a rodless cylinder 12, a linear guide rail 13, a slider 14 and a connecting plate 15; the guide outer cover 11 is fixed on the ground of the charging area, the rodless cylinder 12 is installed on the inner bottom of the guide outer cover, the linear guide rail 13 is installed on both sides of the inner wall of the guide outer cover 11, and the connecting plate 15 is connected with the linear guide rail 13 through the slider 14; the connecting plate 15 is connected with the rodless cylinder 12;

[0033] A cart assembly 2, wherein the cart assembly 2 comprises a cart frame 21, a cart plate 22, a fixing tool 23, a characterizing block mounting plate 24, a characterizing block 25, a bottom guide roller 26, a walking wheel assembly and a connecting seat 29, wherein the walking wheel assembly is connected to the cart frame 21; the cart plate 22 is mounted on the cart frame 21, the fixing tool 23 is mounted on the cart plate 22, the characterizing block mounting plate 24 is mounted on the upper side of the front end of the cart plate 22, the characterizing block mounting plate 24 is provided with a plurality of mounting holes, the characterizing block 25 is mounted in any one of the plurality of mounting holes, the bottom guide roller 26 is mounted below the cart frame 21, and the connecting seat 29 is horizontally mounted just in front of the front end of the cart frame 21;

[0034] A connection fixing component 3, the connection fixing component 3 comprises a support 31, a lifting cylinder 32, a latch shaft 33, two fixing seats 34, an identification detection sensor 35 and a buffer block 36; the support 31 is mounted on the connecting plate 15, the lifting cylinder 32 is mounted on the support 31, one end of the latch shaft 33 is connected to the lifting cylinder 32, the other end of the latch shaft 33 is supported in the fixing seat 34, the two fixing seats 34 are respectively located on the inner side of the support 31 and are installed up and down along the axis of the latch shaft 33, the identification detection sensor 35 is installed on the inner side of the support 31, and the buffer block 36 is installed on the front plate of the support 31;

[0035] Among them, the front end of the entry and exit component 1 is arranged outside the charging area, and the rear end of the entry and exit component 1 is arranged in the charging area; the identification detection sensor 35 is consistent with the number, position and spacing of the several installation holes, and is used to identify the installation position of the characterization block 25 so as to realize the identification of the projectile model; the fixing tool 23 is used to fix the projectile to be loaded, and after the trolley component 2 enters the entry and exit component 1 under the action of external force, the connecting seat 29 enters between the two fixing seats 34, so that the pin shaft 33 passes through the connecting seat 29 along the two fixing seats 34 under the drive of the lifting cylinder 32, so that the trolley component 2 and the connecting and fixing component 3 form a temporary fixed connection.

[0036] The projectile entry and exit device provided in the embodiment of the present application has an entry and exit assembly 1 installed on the ground of the charging area, with the front end outside the charging area (connection station) and the rear end inside the charging area (charging station). The connection and fixing assembly 3 is installed on the entry and exit assembly 1, and the cart assembly 2 can move freely alone, or it can be connected and fixed with the connection and fixing assembly 3. When in use, the projectile is manually loaded and fixed and then pushed to the connection station. After the cart assembly 2 is detected to be in place, the connection and fixing assembly 3 automatically identifies the projectile model and automatically connects and fixes it, and the entry and exit assembly 1 then drives the connection and fixing assembly 3 to drive the cart assembly 2 and the projectile into the charging station. After the charging is completed, the entry and exit assembly 1 sends the cart assembly 2 and the projectile out again, and the connection and fixing assembly 3 automatically disconnects, and the cart assembly 2 and the projectile are manually pushed to the designated area for projectile unloading. After the projectile is manually placed on the trolley assembly 2, the device can automatically transport the projectile to the charging station for charging. At the same time, it can also automatically identify the model of the projectile, facilitate the transportation of the projectile during the charging process of the molten explosive, and realize automatic identification, docking and entry and exit of the projectile.

[0037] In order to ensure the stability of the automatic driving cart assembly 2 during operation, the embodiment of the present application can also provide two sets of the linear guide rails 13 and the sliders 14, which are respectively installed on both sides of the inner wall of the guide outer cover 11.

[0038] In order to ensure the stability of the projectile fixation, the embodiment of the present application can also provide that the fixing tool 23 includes two fixing blocks arranged opposite to each other, so as to adopt a V-shaped clamping structure to fix the projectile to be charged.

[0039] In order to clamp projectiles of different sizes, the embodiment of the present application may further provide a plurality of mounting positions on the cart plate 22 so as to adjust the relative distance between the two fixing blocks and fix the projectiles to be loaded with different diameters.

[0040] Furthermore, the embodiment of the present application can provide that the walking wheel assembly includes a fixed caster 27 and a universal caster 28; the fixed caster 27 is installed at two supporting corners at the front end of the bottom of the cart frame 21, and the universal caster 28 is installed at two supporting corners at the rear end of the bottom of the cart frame 21. The universal caster 28 has a brake function.

[0041] In order to facilitate the user to manually push the cart assembly 2 , the embodiment of the present application may further provide that the cart assembly 2 also includes a handle 210 ; the handle 210 is installed at the rear end of the cart frame 21 .

[0042] In order to further facilitate the user to push the cart assembly 2 into the entry and exit assembly 1, the embodiment of the present application can also provide that the bottom guide rollers 26 include two groups, and the spacing of the bottom guide rollers 26 becomes narrower along the forward direction, so as to cooperate with the guide outer cover 11 to achieve the guiding and positioning function of the cart assembly 2. The guide outer cover 11 can be set to a pointed structure at one end, which is convenient for the entry of the cart assembly 2.

[0043] The embodiment of the present application may include multiple characterization blocks, which are used to characterize different types of projectiles according to different installation positions. In specific implementation, the embodiment of the present application may include the characterization block 25 including multiple characters whose number is the same as the number of the several installation holes, so as to characterize different types of projectiles through different arrangements and combinations on the characterization block mounting plate 24.

[0044] In order to detect whether the trolley assembly 2 and the connecting and fixing assembly 3 are in place, the embodiment of the present application may provide that the connecting and fixing assembly 3 also includes a position detection sensor 37, and the position detection sensor 37 is installed on a sensor bracket 38, and the sensor bracket 38 is installed on the connecting plate 15; after the position detection sensor 37 is triggered, the lifting cylinder 32 drives the pin shaft 33 along the two fixing seats 34 to pass through the connecting seat 29.

[0045] The structure and usage of the device provided in this application are described in detail below.

[0046] The projectile entry and exit device provided in the embodiment of the present application comprises an entry and exit assembly 1, a trolley assembly 2, and a connection and fixing assembly 3. The entry and exit assembly 1 is installed on the ground of the charging area, with the front end outside the charging area (connection station) and the rear end inside the charging area (charging station). The connection and fixing assembly 3 is installed on the entry and exit assembly 1, and the trolley assembly 2 can move freely alone or be connected and fixed with the connection and fixing assembly 3.

[0047] The in-and-out assembly 1 is composed of a guide housing 11, a rodless cylinder 12, a linear guide 13, a slider 14, and a connecting plate 15. The guide housing 11 is fixed on the ground, the rodless cylinder 12 is installed at the inner bottom of the guide housing 11, the linear guide 13 is installed on both sides of the inner wall of the guide housing 11, the slider 14 is installed on the linear guide 13 and can slide along the linear guide 13, and the connecting plate 15 is connected and fixed with the slider 14 and the rodless cylinder 12.

[0048] Furthermore, the linear guide rails 13 and the sliding blocks 14 are each in two sets, which are respectively installed on both sides of the inner wall of the guide outer cover 11.

[0049] The cart assembly 2 is composed of a cart frame 21, a cart plate 22, a fixed tool 23, a characterizing block mounting plate 24, a characterizing block 25, a bottom guide roller 26, a fixed caster 27, a universal caster 28, a connecting seat 29, and a handle 210. Among them, the fixed caster 27 is installed at two supporting angles at the front end of the bottom of the cart frame 21, the universal caster 28 is installed at two supporting angles at the rear end of the bottom of the cart frame 21, the cart plate 22 is installed on the cart frame 21, the fixed tool 23 is installed on the cart plate 22, the characterizing block mounting plate 24 is installed on the upper side of the front end of the cart plate 22, the characterizing block 25 is installed in the hole of the characterizing block mounting plate 24, the bottom guide roller 26 is installed below the cart frame 21, the handle 210 is installed at the rear end of the cart frame 21, and the connecting seat 29 is installed horizontally in front of the front end of the cart frame 21.

[0050] Furthermore, the cart plate 22 is provided with a plurality of installation positions of the fixed tooling 23. The position of the fixed tooling 23 is adjusted according to the diameter of the projectile, so that the projectile within a certain diameter range can be compatible and the production of multiple types of projectiles can be adapted.

[0051] Furthermore, the fixing fixture 23 is composed of two fixing blocks, and a V-shaped clamping structure is used to fix the elastic body.

[0052] Furthermore, the universal caster 28 has a braking function.

[0053] Furthermore, the bottom guide rollers 26 are composed of two groups of rollers, the distance between the rollers is narrowed from wide, and cooperate with the guide outer cover 11 to achieve the guiding and positioning function of the cart assembly 2.

[0054] Furthermore, the number of the characterization blocks 25 is configured according to the number of mounting holes of the characterization block mounting plate 24 , and different models of the projectile are characterized by different arrangements and combinations on the characterization block mounting plate 24 .

[0055] The connection and fixing assembly 3 is composed of a support 31 , a lifting cylinder 32 , a latch shaft 33 , a fixing seat 34 , an identification detection sensor 35 , an in-position detection sensor 37 , a sensor bracket 38 , and a buffer block 36 .

[0056] Among them, the support 31 is installed on the connecting plate 15, the lifting cylinder 32 is installed on the upper plate of the support 31, one end of the pin shaft 33 is connected to the lifting cylinder 32, and the other end is supported in the fixed seat 34, the fixed seat 34 is installed on the inner side of the support 31, the identification detection sensor 35 is installed on the inner side of the support 31, the in-position detection sensor 37 is installed on the sensor bracket 38, the sensor bracket 38 is installed on the connecting plate 15, and the buffer block 36 is installed on the front plate of the support 31.

[0057] Furthermore, there are two fixing seats 34 installed up and down along the axis of the latch shaft 33 , and the latch shaft 33 can slide smoothly in the fixing seats 34 .

[0058] Furthermore, the identification detection sensor 35 is consistent with the number, position and spacing of the mounting holes of the characterization block mounting plate 24, ensuring that each mounting hole position has an identification detection sensor 35 to detect whether there is a characterization block 25 at that position, and the projectile model recognition function is realized by combining the detection signals of the detection sensors, which facilitates the charging control system to automatically call the corresponding process recipe.

[0059] Furthermore, the connection and fixing method of the cart assembly 2 is that the connection seat 29 of the cart assembly 2 is guided into between two fixing seats 34, and the lifting cylinder 32 drives the latch shaft 33 to pass through the connection seat 29 along the fixing seat 34 to form a connection and fixation.

[0060] Furthermore, the projectile model detection and identification method is a detection and identification method based on permutation and combination, and the representation of different projectile model information is achieved through the physical permutation and combination of the representation block 25, and one permutation and combination represents one projectile model information. During encoding, the representation block 25 representing the corresponding projectile model is fixed in the corresponding mounting plate hole according to the corresponding permutation and combination, and the permutation and combination of the representation block 25 is detected by the sensor to generate the corresponding permutation and combination detection signal, thereby decoding and identifying the projectile model information.

[0061] The working process of the projectile in and out device described in this example is as follows:

[0062] A. Manually place the projectile into the fixing fixture 23 on the cart assembly 2 and fasten it, and at the same time, install the combination of the characterization block 25 according to the projectile model.

[0063] B. Manually push the trolley assembly 2 toward the connecting and fixing assembly 3. After the in-place detection sensor 37 recognizes that the trolley assembly 2 is in place, the lifting cylinder 32 drives the latch shaft 33 to fall into the fixing seat 34 and the connecting seat 29, connecting the trolley assembly 2 and the connecting and fixing assembly 3. At the same time, the identification detection sensor 35 detects the combination of the identification characterization block 25 to confirm the model of the projectile.

[0064] C. The rodless cylinder 12 in the in-and-out assembly 1 drives the connecting and fixing assembly 3 to move the trolley assembly 2 to the charging station.

[0065] D. After the charging is completed, the rodless cylinder 12 provides power to move the projectile out of the charging station, and the lifting cylinder 32 drives the latch shaft 33 to pull out the fixing seat 34 and the connecting seat 29, and the trolley assembly 2 is separated from the connecting and fixing assembly 3. The trolley assembly 2 is moved to the designated area manually, and the fixing tool 23 is opened to take out the projectile.

[0066] In summary, the projectile entry and exit device provided by the present application has an entry and exit assembly installed on the ground of the charging area, with the front end outside the charging area (connection station) and the rear end inside the charging area (charging station). The connection and fixing assembly is installed on the entry and exit assembly, and the cart assembly can move freely alone or be connected and fixed with the connection and fixing assembly. The device realizes automatic identification, docking and entry and exit of projectiles during the charging process, adapts to automatic charging, and is convenient for transportation, which changes the traditional manual transportation method, greatly reduces the participation and labor intensity of personnel in the charging process, and reduces safety risks.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] It can be known from the description of the above implementation methods that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application or certain parts of the embodiments.

[0069] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A projectile entry and exit device, characterized in that: include: An in-and-out assembly, the in-and-out assembly comprises a guide outer cover, a rodless cylinder, a linear guide rail, a slider and a connecting plate; the guide outer cover is fixedly mounted on the ground of the charging area, the rodless cylinder is mounted on the inner bottom of the guide outer cover, the linear guide rail is mounted on both sides of the inner wall of the guide outer cover, the connecting plate is connected with the linear guide rail through the slider; the connecting plate is connected with the rodless cylinder; A cart assembly, the cart assembly comprising a cart frame, a cart plate, a fixing tool, a characterizing block mounting plate, a characterizing block, a bottom guide roller, a walking wheel assembly and a connecting seat, wherein the walking wheel assembly is connected to the cart frame; the cart plate is mounted on the cart frame, the fixing tool is mounted on the cart plate, the characterizing block mounting plate is mounted on the upper side of the front end of the cart plate, the characterizing block mounting plate is provided with a plurality of mounting holes, the characterizing block is mounted in any one of the plurality of mounting holes, the bottom guide roller is mounted below the cart frame, and the connecting seat is horizontally mounted just in front of the front end of the cart frame; A connection and fixing assembly, the connection and fixing assembly comprising a support, a lifting cylinder, a latch shaft, two fixing seats, an identification and detection sensor and a buffer block; the support is mounted on the connecting plate, the lifting cylinder is mounted on the support, one end of the latch shaft is connected to the lifting cylinder, the other end of the latch shaft is supported in the fixing seat, the two fixing seats are respectively located on the inner side of the support and are installed up and down along the axis of the latch shaft, the identification and detection sensor is installed on the inner side of the support, and the buffer block is installed on the front plate of the support; Among them, the front end of the entry and exit component is arranged outside the charging area, and the rear end of the entry and exit component is arranged in the charging area; the identification detection sensor is consistent with the number, position and spacing of several of the installation holes, and is used to identify the installation position of the characterization block so as to realize the identification of the projectile model; the fixing tool is used to fix the projectile to be loaded, and after the trolley component enters the entry and exit component under the action of external force, the connecting seat enters between the two fixing seats, so that the pin shaft passes through the connecting seat along the two fixing seats under the drive of the lifting cylinder, so that the trolley component and the connecting and fixing component form a temporary fixed connection.

2. The projectile entry and exit device according to claim 1, characterized in that: The linear guide rails and the sliding blocks are both in two sets, which are respectively installed on both sides of the inner wall of the guide outer cover.

3. The projectile entry and exit device according to claim 1, characterized in that: The fixing tool comprises two fixing blocks arranged opposite to each other, so as to fix the projectile to be charged with explosives by adopting a V-shaped clamping structure.

4. The projectile entry and exit device according to claim 3, characterized in that: A plurality of mounting positions are arranged on the trolley plate so as to adjust the relative distance between the two fixing blocks and fix the projectiles to be loaded with explosives of different diameters.

5. The projectile entry and exit device according to claim 1, characterized in that: The walking wheel assembly includes a fixed caster and a universal caster; the fixed caster is installed at two supporting angles at the front end of the bottom of the cart frame, and the universal caster is installed at two supporting angles at the rear end of the bottom of the cart frame.

6. The projectile entry and exit device according to claim 5, characterized in that: The universal caster has a brake function.

7. The projectile entry and exit device according to claim 1, characterized in that: The pushcart assembly also includes a handle; the handle is mounted on the rear end of the pushcart frame.

8. The projectile entry and exit device according to claim 1, characterized in that: The bottom guide rollers include two groups, and the spacing between the bottom guide rollers decreases from wide to narrow along the forward direction, so as to cooperate with the guide outer cover to realize the guiding and positioning function of the cart assembly.

9. The projectile entry and exit device according to claim 1, characterized in that: The characterization block includes a plurality of holes whose number is the same as the number of the mounting holes, so that different models of the projectile can be characterized by different arrangements and combinations on the mounting plate of the characterization block.

10. The projectile entry and exit device according to claim 1, characterized in that: The connection and fixing assembly also includes an in-place detection sensor, which is installed on a sensor bracket, and the sensor bracket is installed on the connecting plate; after the in-place detection sensor is triggered, the lifting cylinder drives the latch shaft along the two fixing seats to pass through the connecting seat.

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